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Finding the Fourth Proportional to 5,612.15, 7,741.92 and 4,283.55

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Solution

The fourth proportional to 5,612.15, 7,741.92 and 4,283.55 is: 5,909.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,612.15 : 7,741.92 = 4,283.55 : x
  2. Step 2: Convert to fraction form
    5,612.15/7,741.92 = 4,283.55/x
  3. Step 3: Cross multiply
    5,612.15x = 7,741.92 × 4,283.55
  4. Step 4: Simplify right side
    5,612.15x = 33,162,901.42
  5. Step 5: Solve for x
    x = 33,162,901.42/5,612.15
  6. Step 6: Final answer
    x = 5,909.13

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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.