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Finding the Fourth Proportional to 11,275.52, 15,565.76 and 7,086.08

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Solution

The fourth proportional to 11,275.52, 15,565.76 and 7,086.08 is: 9,782.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,275.52 : 15,565.76 = 7,086.08 : x
  2. Step 2: Convert to fraction form
    11,275.52/15,565.76 = 7,086.08/x
  3. Step 3: Cross multiply
    11,275.52x = 15,565.76 × 7,086.08
  4. Step 4: Simplify right side
    11,275.52x = 110,300,220.62
  5. Step 5: Solve for x
    x = 110,300,220.62/11,275.52
  6. Step 6: Final answer
    x = 9,782.27

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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.