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Finding the Fourth Proportional to 48,935.60, 67,877.60 and 47,257.28

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Solution

The fourth proportional to 48,935.60, 67,877.60 and 47,257.28 is: 65,549.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,935.60 : 67,877.60 = 47,257.28 : x
  2. Step 2: Convert to fraction form
    48,935.60/67,877.60 = 47,257.28/x
  3. Step 3: Cross multiply
    48,935.60x = 67,877.60 × 47,257.28
  4. Step 4: Simplify right side
    48,935.60x = 3,207,710,748.93
  5. Step 5: Solve for x
    x = 3,207,710,748.93/48,935.60
  6. Step 6: Final answer
    x = 65,549.64

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Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.