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Finding the Fourth Proportional to 15,244.80, 21,037.80 and 8,532

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Solution

The fourth proportional to 15,244.80, 21,037.80 and 8,532 is: 11,774.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,244.80 : 21,037.80 = 8,532 : x
  2. Step 2: Convert to fraction form
    15,244.80/21,037.80 = 8,532/x
  3. Step 3: Cross multiply
    15,244.80x = 21,037.80 × 8,532
  4. Step 4: Simplify right side
    15,244.80x = 179,494,541.60
  5. Step 5: Solve for x
    x = 179,494,541.60/15,244.80
  6. Step 6: Final answer
    x = 11,774.15

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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.