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Finding the Fourth Proportional to 57,713.73, 86,559.65 and 20,265.00

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Solution

The fourth proportional to 57,713.73, 86,559.65 and 20,265.00 is: 30,393.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,713.73 : 86,559.65 = 20,265.00 : x
  2. Step 2: Convert to fraction form
    57,713.73/86,559.65 = 20,265.00/x
  3. Step 3: Cross multiply
    57,713.73x = 86,559.65 × 20,265.00
  4. Step 4: Simplify right side
    57,713.73x = 1,754,130,925.11
  5. Step 5: Solve for x
    x = 1,754,130,925.11/57,713.73
  6. Step 6: Final answer
    x = 30,393.65

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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.