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Finding the Fourth Proportional to 9,768,295.80, 14,652,443.70 and 4,990,721.40

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Solution

The fourth proportional to 9,768,295.80, 14,652,443.70 and 4,990,721.40 is: 7,486,082.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,768,295.80 : 14,652,443.70 = 4,990,721.40 : x
  2. Step 2: Convert to fraction form
    9,768,295.80/14,652,443.70 = 4,990,721.40/x
  3. Step 3: Cross multiply
    9,768,295.80x = 14,652,443.70 × 4,990,721.40
  4. Step 4: Simplify right side
    9,768,295.80x = 73,126,264,335,885.19
  5. Step 5: Solve for x
    x = 73,126,264,335,885.19/9,768,295.80
  6. Step 6: Final answer
    x = 7,486,082.10

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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.