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Finding the Fourth Proportional to 11,366.66, 15,687 and 6,330.76

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Solution

The fourth proportional to 11,366.66, 15,687 and 6,330.76 is: 8,737.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,366.66 : 15,687 = 6,330.76 : x
  2. Step 2: Convert to fraction form
    11,366.66/15,687 = 6,330.76/x
  3. Step 3: Cross multiply
    11,366.66x = 15,687 × 6,330.76
  4. Step 4: Simplify right side
    11,366.66x = 99,310,592.90
  5. Step 5: Solve for x
    x = 99,310,592.90/11,366.66
  6. Step 6: Final answer
    x = 8,737.01

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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.