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Finding the Fourth Proportional to 4,981.32, 7,472.64 and 1,693.53

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Solution

The fourth proportional to 4,981.32, 7,472.64 and 1,693.53 is: 2,540.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,981.32 : 7,472.64 = 1,693.53 : x
  2. Step 2: Convert to fraction form
    4,981.32/7,472.64 = 1,693.53/x
  3. Step 3: Cross multiply
    4,981.32x = 7,472.64 × 1,693.53
  4. Step 4: Simplify right side
    4,981.32x = 12,655,140.02
  5. Step 5: Solve for x
    x = 12,655,140.02/4,981.32
  6. Step 6: Final answer
    x = 2,540.52

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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.