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Finding the Fourth Proportional to 57,602.52, 79,461.14 and 39,666.44

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Solution

The fourth proportional to 57,602.52, 79,461.14 and 39,666.44 is: 54,718.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,602.52 : 79,461.14 = 39,666.44 : x
  2. Step 2: Convert to fraction form
    57,602.52/79,461.14 = 39,666.44/x
  3. Step 3: Cross multiply
    57,602.52x = 79,461.14 × 39,666.44
  4. Step 4: Simplify right side
    57,602.52x = 3,151,940,542.14
  5. Step 5: Solve for x
    x = 3,151,940,542.14/57,602.52
  6. Step 6: Final answer
    x = 54,718.80

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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.