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Finding the Fourth Proportional to 6,615.52, 9,129.84 and 4,373.46

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Solution

The fourth proportional to 6,615.52, 9,129.84 and 4,373.46 is: 6,035.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,615.52 : 9,129.84 = 4,373.46 : x
  2. Step 2: Convert to fraction form
    6,615.52/9,129.84 = 4,373.46/x
  3. Step 3: Cross multiply
    6,615.52x = 9,129.84 × 4,373.46
  4. Step 4: Simplify right side
    6,615.52x = 39,928,990.05
  5. Step 5: Solve for x
    x = 39,928,990.05/6,615.52
  6. Step 6: Final answer
    x = 6,035.65

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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.