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Finding the Fourth Proportional to 8,371.68, 11,552.40 and 4,787.01

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Solution

The fourth proportional to 8,371.68, 11,552.40 and 4,787.01 is: 6,605.78

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,371.68 : 11,552.40 = 4,787.01 : x
  2. Step 2: Convert to fraction form
    8,371.68/11,552.40 = 4,787.01/x
  3. Step 3: Cross multiply
    8,371.68x = 11,552.40 × 4,787.01
  4. Step 4: Simplify right side
    8,371.68x = 55,301,454.32
  5. Step 5: Solve for x
    x = 55,301,454.32/8,371.68
  6. Step 6: Final answer
    x = 6,605.78

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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.