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Finding the Fourth Proportional to 5,251.64, 7,875.05 and 1,552.55

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Solution

The fourth proportional to 5,251.64, 7,875.05 and 1,552.55 is: 2,328.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,251.64 : 7,875.05 = 1,552.55 : x
  2. Step 2: Convert to fraction form
    5,251.64/7,875.05 = 1,552.55/x
  3. Step 3: Cross multiply
    5,251.64x = 7,875.05 × 1,552.55
  4. Step 4: Simplify right side
    5,251.64x = 12,226,361.74
  5. Step 5: Solve for x
    x = 12,226,361.74/5,251.64
  6. Step 6: Final answer
    x = 2,328.11

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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.