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Finding the Fourth Proportional to 31,706.13, 43,654.88 and 26,916.15

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Solution

The fourth proportional to 31,706.13, 43,654.88 and 26,916.15 is: 37,059.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,706.13 : 43,654.88 = 26,916.15 : x
  2. Step 2: Convert to fraction form
    31,706.13/43,654.88 = 26,916.15/x
  3. Step 3: Cross multiply
    31,706.13x = 43,654.88 × 26,916.15
  4. Step 4: Simplify right side
    31,706.13x = 1,175,021,283.75
  5. Step 5: Solve for x
    x = 1,175,021,283.75/31,706.13
  6. Step 6: Final answer
    x = 37,059.75

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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.