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Finding the Fourth Proportional to 11,562.66, 15,953.94 and 8,876.97

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Solution

The fourth proportional to 11,562.66, 15,953.94 and 8,876.97 is: 12,248.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,562.66 : 15,953.94 = 8,876.97 : x
  2. Step 2: Convert to fraction form
    11,562.66/15,953.94 = 8,876.97/x
  3. Step 3: Cross multiply
    11,562.66x = 15,953.94 × 8,876.97
  4. Step 4: Simplify right side
    11,562.66x = 141,622,646.76
  5. Step 5: Solve for x
    x = 141,622,646.76/11,562.66
  6. Step 6: Final answer
    x = 12,248.28

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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.