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Finding the Fourth Proportional to 7,001.71, 9,659.07 and 4,167.47

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Solution

The fourth proportional to 7,001.71, 9,659.07 and 4,167.47 is: 5,749.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,001.71 : 9,659.07 = 4,167.47 : x
  2. Step 2: Convert to fraction form
    7,001.71/9,659.07 = 4,167.47/x
  3. Step 3: Cross multiply
    7,001.71x = 9,659.07 × 4,167.47
  4. Step 4: Simplify right side
    7,001.71x = 40,253,908.60
  5. Step 5: Solve for x
    x = 40,253,908.60/7,001.71
  6. Step 6: Final answer
    x = 5,749.16

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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.