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Finding the Fourth Proportional to 22,964.31, 31,702.82 and 15,450.17

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Solution

The fourth proportional to 22,964.31, 31,702.82 and 15,450.17 is: 21,329.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,964.31 : 31,702.82 = 15,450.17 : x
  2. Step 2: Convert to fraction form
    22,964.31/31,702.82 = 15,450.17/x
  3. Step 3: Cross multiply
    22,964.31x = 31,702.82 × 15,450.17
  4. Step 4: Simplify right side
    22,964.31x = 489,813,722.71
  5. Step 5: Solve for x
    x = 489,813,722.71/22,964.31
  6. Step 6: Final answer
    x = 21,329.35

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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.