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Finding the Fourth Proportional to 11,243.50, 15,516.06 and 6,275.50

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Solution

The fourth proportional to 11,243.50, 15,516.06 and 6,275.50 is: 8,660.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,243.50 : 15,516.06 = 6,275.50 : x
  2. Step 2: Convert to fraction form
    11,243.50/15,516.06 = 6,275.50/x
  3. Step 3: Cross multiply
    11,243.50x = 15,516.06 × 6,275.50
  4. Step 4: Simplify right side
    11,243.50x = 97,371,034.53
  5. Step 5: Solve for x
    x = 97,371,034.53/11,243.50
  6. Step 6: Final answer
    x = 8,660.21

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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.