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Finding the Fourth Proportional to 17,412.64, 26,061.14 and 15,856.20

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Solution

The fourth proportional to 17,412.64, 26,061.14 and 15,856.20 is: 23,731.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,412.64 : 26,061.14 = 15,856.20 : x
  2. Step 2: Convert to fraction form
    17,412.64/26,061.14 = 15,856.20/x
  3. Step 3: Cross multiply
    17,412.64x = 26,061.14 × 15,856.20
  4. Step 4: Simplify right side
    17,412.64x = 413,230,648.07
  5. Step 5: Solve for x
    x = 413,230,648.07/17,412.64
  6. Step 6: Final answer
    x = 23,731.65

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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.