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Finding the Fourth Proportional to 9,784,689.40, 14,677,034.10 and 5,249,726.20

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Solution

The fourth proportional to 9,784,689.40, 14,677,034.10 and 5,249,726.20 is: 7,874,589.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,784,689.40 : 14,677,034.10 = 5,249,726.20 : x
  2. Step 2: Convert to fraction form
    9,784,689.40/14,677,034.10 = 5,249,726.20/x
  3. Step 3: Cross multiply
    9,784,689.40x = 14,677,034.10 × 5,249,726.20
  4. Step 4: Simplify right side
    9,784,689.40x = 77,050,410,453,063.42
  5. Step 5: Solve for x
    x = 77,050,410,453,063.42/9,784,689.40
  6. Step 6: Final answer
    x = 7,874,589.30

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Double scale
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Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.