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Finding the Fourth Proportional to 56,253.76, 77,693.92 and 38,317.60

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Solution

The fourth proportional to 56,253.76, 77,693.92 and 38,317.60 is: 52,921.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,253.76 : 77,693.92 = 38,317.60 : x
  2. Step 2: Convert to fraction form
    56,253.76/77,693.92 = 38,317.60/x
  3. Step 3: Cross multiply
    56,253.76x = 77,693.92 × 38,317.60
  4. Step 4: Simplify right side
    56,253.76x = 2,977,044,548.99
  5. Step 5: Solve for x
    x = 2,977,044,548.99/56,253.76
  6. Step 6: Final answer
    x = 52,921.70

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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.