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Finding the Fourth Proportional to 17,681.72, 26,464.24 and 15,737.72

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Solution

The fourth proportional to 17,681.72, 26,464.24 and 15,737.72 is: 23,554.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,681.72 : 26,464.24 = 15,737.72 : x
  2. Step 2: Convert to fraction form
    17,681.72/26,464.24 = 15,737.72/x
  3. Step 3: Cross multiply
    17,681.72x = 26,464.24 × 15,737.72
  4. Step 4: Simplify right side
    17,681.72x = 416,486,799.13
  5. Step 5: Solve for x
    x = 416,486,799.13/17,681.72
  6. Step 6: Final answer
    x = 23,554.65

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1.5x scale

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.