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Finding the Fourth Proportional to 12,587.52, 17,373.28 and 7,282.08

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Solution

The fourth proportional to 12,587.52, 17,373.28 and 7,282.08 is: 10,050.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,587.52 : 17,373.28 = 7,282.08 : x
  2. Step 2: Convert to fraction form
    12,587.52/17,373.28 = 7,282.08/x
  3. Step 3: Cross multiply
    12,587.52x = 17,373.28 × 7,282.08
  4. Step 4: Simplify right side
    12,587.52x = 126,513,614.82
  5. Step 5: Solve for x
    x = 126,513,614.82/12,587.52
  6. Step 6: Final answer
    x = 10,050.72

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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.