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Finding the Fourth Proportional to 5,731.61, 7,909.61 and 3,373.74

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Solution

The fourth proportional to 5,731.61, 7,909.61 and 3,373.74 is: 4,655.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,731.61 : 7,909.61 = 3,373.74 : x
  2. Step 2: Convert to fraction form
    5,731.61/7,909.61 = 3,373.74/x
  3. Step 3: Cross multiply
    5,731.61x = 7,909.61 × 3,373.74
  4. Step 4: Simplify right side
    5,731.61x = 26,684,950.77
  5. Step 5: Solve for x
    x = 26,684,950.77/5,731.61
  6. Step 6: Final answer
    x = 4,655.76

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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.