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Finding the Fourth Proportional to 10,503.84, 15,754.80 and 6,118.56

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Solution

The fourth proportional to 10,503.84, 15,754.80 and 6,118.56 is: 9,177.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,503.84 : 15,754.80 = 6,118.56 : x
  2. Step 2: Convert to fraction form
    10,503.84/15,754.80 = 6,118.56/x
  3. Step 3: Cross multiply
    10,503.84x = 15,754.80 × 6,118.56
  4. Step 4: Simplify right side
    10,503.84x = 96,396,689.09
  5. Step 5: Solve for x
    x = 96,396,689.09/10,503.84
  6. Step 6: Final answer
    x = 9,177.28

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1.5x scale

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.