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Finding the Fourth Proportional to 15,008.44, 20,710.61 and 8,294

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Solution

The fourth proportional to 15,008.44, 20,710.61 and 8,294 is: 11,445.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,008.44 : 20,710.61 = 8,294 : x
  2. Step 2: Convert to fraction form
    15,008.44/20,710.61 = 8,294/x
  3. Step 3: Cross multiply
    15,008.44x = 20,710.61 × 8,294
  4. Step 4: Simplify right side
    15,008.44x = 171,773,799.34
  5. Step 5: Solve for x
    x = 171,773,799.34/15,008.44
  6. Step 6: Final answer
    x = 11,445.15

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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.