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Finding the Fourth Proportional to 7,018,305.40, 10,527,458.10 and 7,018,305.40

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Solution

The fourth proportional to 7,018,305.40, 10,527,458.10 and 7,018,305.40 is: 10,527,458.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,018,305.40 : 10,527,458.10 = 7,018,305.40 : x
  2. Step 2: Convert to fraction form
    7,018,305.40/10,527,458.10 = 7,018,305.40/x
  3. Step 3: Cross multiply
    7,018,305.40x = 10,527,458.10 × 7,018,305.40
  4. Step 4: Simplify right side
    7,018,305.40x = 73,884,916,031,503.73
  5. Step 5: Solve for x
    x = 73,884,916,031,503.73/7,018,305.40
  6. Step 6: Final answer
    x = 10,527,458.10

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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.