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Finding the Fourth Proportional to 58,702.73, 88,033.16 and 21,253.12

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Solution

The fourth proportional to 58,702.73, 88,033.16 and 21,253.12 is: 31,872.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,702.73 : 88,033.16 = 21,253.12 : x
  2. Step 2: Convert to fraction form
    58,702.73/88,033.16 = 21,253.12/x
  3. Step 3: Cross multiply
    58,702.73x = 88,033.16 × 21,253.12
  4. Step 4: Simplify right side
    58,702.73x = 1,870,979,146.51
  5. Step 5: Solve for x
    x = 1,870,979,146.51/58,702.73
  6. Step 6: Final answer
    x = 31,872.10

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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.