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Finding the Fourth Proportional to 10,347.60, 15,524.64 and 6,654

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Solution

The fourth proportional to 10,347.60, 15,524.64 and 6,654 is: 9,983.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,347.60 : 15,524.64 = 6,654 : x
  2. Step 2: Convert to fraction form
    10,347.60/15,524.64 = 6,654/x
  3. Step 3: Cross multiply
    10,347.60x = 15,524.64 × 6,654
  4. Step 4: Simplify right side
    10,347.60x = 103,300,954.56
  5. Step 5: Solve for x
    x = 103,300,954.56/10,347.60
  6. Step 6: Final answer
    x = 9,983.08

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.