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Finding the Fourth Proportional to 19,705.18, 29,581.17 and 15,548.17

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Solution

The fourth proportional to 19,705.18, 29,581.17 and 15,548.17 is: 23,340.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,705.18 : 29,581.17 = 15,548.17 : x
  2. Step 2: Convert to fraction form
    19,705.18/29,581.17 = 15,548.17/x
  3. Step 3: Cross multiply
    19,705.18x = 29,581.17 × 15,548.17
  4. Step 4: Simplify right side
    19,705.18x = 459,933,048.76
  5. Step 5: Solve for x
    x = 459,933,048.76/19,705.18
  6. Step 6: Final answer
    x = 23,340.72

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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.