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Finding the Fourth Proportional to 5,483.92, 7,565.88 and 3,125.20

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Solution

The fourth proportional to 5,483.92, 7,565.88 and 3,125.20 is: 4,311.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,483.92 : 7,565.88 = 3,125.20 : x
  2. Step 2: Convert to fraction form
    5,483.92/7,565.88 = 3,125.20/x
  3. Step 3: Cross multiply
    5,483.92x = 7,565.88 × 3,125.20
  4. Step 4: Simplify right side
    5,483.92x = 23,644,888.18
  5. Step 5: Solve for x
    x = 23,644,888.18/5,483.92
  6. Step 6: Final answer
    x = 4,311.68

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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.