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Finding the Fourth Proportional to 63,472.51, 87,557.29 and 40,459.60

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Solution

The fourth proportional to 63,472.51, 87,557.29 and 40,459.60 is: 55,812.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,472.51 : 87,557.29 = 40,459.60 : x
  2. Step 2: Convert to fraction form
    63,472.51/87,557.29 = 40,459.60/x
  3. Step 3: Cross multiply
    63,472.51x = 87,557.29 × 40,459.60
  4. Step 4: Simplify right side
    63,472.51x = 3,542,532,938.78
  5. Step 5: Solve for x
    x = 3,542,532,938.78/63,472.51
  6. Step 6: Final answer
    x = 55,812.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.