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Finding the Fourth Proportional to 10,444.66, 15,648.76 and 8,700.87

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Solution

The fourth proportional to 10,444.66, 15,648.76 and 8,700.87 is: 13,036.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,444.66 : 15,648.76 = 8,700.87 : x
  2. Step 2: Convert to fraction form
    10,444.66/15,648.76 = 8,700.87/x
  3. Step 3: Cross multiply
    10,444.66x = 15,648.76 × 8,700.87
  4. Step 4: Simplify right side
    10,444.66x = 136,157,807.96
  5. Step 5: Solve for x
    x = 136,157,807.96/10,444.66
  6. Step 6: Final answer
    x = 13,036.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.