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Finding the Fourth Proportional to 8,374.74, 11,557.35 and 4,839.18

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Solution

The fourth proportional to 8,374.74, 11,557.35 and 4,839.18 is: 6,678.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,374.74 : 11,557.35 = 4,839.18 : x
  2. Step 2: Convert to fraction form
    8,374.74/11,557.35 = 4,839.18/x
  3. Step 3: Cross multiply
    8,374.74x = 11,557.35 × 4,839.18
  4. Step 4: Simplify right side
    8,374.74x = 55,928,096.97
  5. Step 5: Solve for x
    x = 55,928,096.97/8,374.74
  6. Step 6: Final answer
    x = 6,678.19

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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.