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Finding the Fourth Proportional to 11,585.76, 15,995.28 and 7,613.52

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Solution

The fourth proportional to 11,585.76, 15,995.28 and 7,613.52 is: 10,511.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,585.76 : 15,995.28 = 7,613.52 : x
  2. Step 2: Convert to fraction form
    11,585.76/15,995.28 = 7,613.52/x
  3. Step 3: Cross multiply
    11,585.76x = 15,995.28 × 7,613.52
  4. Step 4: Simplify right side
    11,585.76x = 121,780,384.19
  5. Step 5: Solve for x
    x = 121,780,384.19/11,585.76
  6. Step 6: Final answer
    x = 10,511.21

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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.