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Finding the Fourth Proportional to 19,507.20, 29,211.30 and 10,732.20

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Solution

The fourth proportional to 19,507.20, 29,211.30 and 10,732.20 is: 16,071.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,507.20 : 29,211.30 = 10,732.20 : x
  2. Step 2: Convert to fraction form
    19,507.20/29,211.30 = 10,732.20/x
  3. Step 3: Cross multiply
    19,507.20x = 29,211.30 × 10,732.20
  4. Step 4: Simplify right side
    19,507.20x = 313,501,513.86
  5. Step 5: Solve for x
    x = 313,501,513.86/19,507.20
  6. Step 6: Final answer
    x = 16,071.07

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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.