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Finding the Fourth Proportional to 11,499.25, 15,868.98 and 6,531.25

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Solution

The fourth proportional to 11,499.25, 15,868.98 and 6,531.25 is: 9,013.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,499.25 : 15,868.98 = 6,531.25 : x
  2. Step 2: Convert to fraction form
    11,499.25/15,868.98 = 6,531.25/x
  3. Step 3: Cross multiply
    11,499.25x = 15,868.98 × 6,531.25
  4. Step 4: Simplify right side
    11,499.25x = 103,644,275.63
  5. Step 5: Solve for x
    x = 103,644,275.63/11,499.25
  6. Step 6: Final answer
    x = 9,013.13

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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.