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Finding the Fourth Proportional to 11,609.71, 17,412.86 and 3,713.11

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Solution

The fourth proportional to 11,609.71, 17,412.86 and 3,713.11 is: 5,569.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,609.71 : 17,412.86 = 3,713.11 : x
  2. Step 2: Convert to fraction form
    11,609.71/17,412.86 = 3,713.11/x
  3. Step 3: Cross multiply
    11,609.71x = 17,412.86 × 3,713.11
  4. Step 4: Simplify right side
    11,609.71x = 64,655,830.35
  5. Step 5: Solve for x
    x = 64,655,830.35/11,609.71
  6. Step 6: Final answer
    x = 5,569.12

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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.