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Finding the Fourth Proportional to 10,458,055.20, 15,687,082.80 and 10,458,055.20

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Solution

The fourth proportional to 10,458,055.20, 15,687,082.80 and 10,458,055.20 is: 15,687,082.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,458,055.20 : 15,687,082.80 = 10,458,055.20 : x
  2. Step 2: Convert to fraction form
    10,458,055.20/15,687,082.80 = 10,458,055.20/x
  3. Step 3: Cross multiply
    10,458,055.20x = 15,687,082.80 × 10,458,055.20
  4. Step 4: Simplify right side
    10,458,055.20x = 164,056,377,849,370.56
  5. Step 5: Solve for x
    x = 164,056,377,849,370.56/10,458,055.20
  6. Step 6: Final answer
    x = 15,687,082.80

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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.