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Finding the Fourth Proportional to 52,720.53, 72,702.49 and 48,344.53

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Solution

The fourth proportional to 52,720.53, 72,702.49 and 48,344.53 is: 66,667.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,720.53 : 72,702.49 = 48,344.53 : x
  2. Step 2: Convert to fraction form
    52,720.53/72,702.49 = 48,344.53/x
  3. Step 3: Cross multiply
    52,720.53x = 72,702.49 × 48,344.53
  4. Step 4: Simplify right side
    52,720.53x = 3,514,767,708.88
  5. Step 5: Solve for x
    x = 3,514,767,708.88/52,720.53
  6. Step 6: Final answer
    x = 66,667.91

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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.