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Finding the Fourth Proportional to 14,375.60, 19,837.68 and 8,710.28

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Solution

The fourth proportional to 14,375.60, 19,837.68 and 8,710.28 is: 12,019.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,375.60 : 19,837.68 = 8,710.28 : x
  2. Step 2: Convert to fraction form
    14,375.60/19,837.68 = 8,710.28/x
  3. Step 3: Cross multiply
    14,375.60x = 19,837.68 × 8,710.28
  4. Step 4: Simplify right side
    14,375.60x = 172,791,747.35
  5. Step 5: Solve for x
    x = 172,791,747.35/14,375.60
  6. Step 6: Final answer
    x = 12,019.79

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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.