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Finding the Fourth Proportional to 48,073.30, 66,368.80 and 31,962.40

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Solution

The fourth proportional to 48,073.30, 66,368.80 and 31,962.40 is: 44,126.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    48,073.30 : 66,368.80 = 31,962.40 : x
  2. Step 2: Convert to fraction form
    48,073.30/66,368.80 = 31,962.40/x
  3. Step 3: Cross multiply
    48,073.30x = 66,368.80 × 31,962.40
  4. Step 4: Simplify right side
    48,073.30x = 2,121,306,133.12
  5. Step 5: Solve for x
    x = 2,121,306,133.12/48,073.30
  6. Step 6: Final answer
    x = 44,126.49

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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.