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Finding the Fourth Proportional to 9,374.59, 12,936.71 and 5,125.68

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Solution

The fourth proportional to 9,374.59, 12,936.71 and 5,125.68 is: 7,073.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,374.59 : 12,936.71 = 5,125.68 : x
  2. Step 2: Convert to fraction form
    9,374.59/12,936.71 = 5,125.68/x
  3. Step 3: Cross multiply
    9,374.59x = 12,936.71 × 5,125.68
  4. Step 4: Simplify right side
    9,374.59x = 66,309,435.71
  5. Step 5: Solve for x
    x = 66,309,435.71/9,374.59
  6. Step 6: Final answer
    x = 7,073.32

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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.