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Finding the Fourth Proportional to 57,368.92, 86,053.38 and 20,432.92

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Solution

The fourth proportional to 57,368.92, 86,053.38 and 20,432.92 is: 30,649.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,368.92 : 86,053.38 = 20,432.92 : x
  2. Step 2: Convert to fraction form
    57,368.92/86,053.38 = 20,432.92/x
  3. Step 3: Cross multiply
    57,368.92x = 86,053.38 × 20,432.92
  4. Step 4: Simplify right side
    57,368.92x = 1,758,321,829.27
  5. Step 5: Solve for x
    x = 1,758,321,829.27/57,368.92
  6. Step 6: Final answer
    x = 30,649.38

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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.