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Finding the Fourth Proportional to 12,374.56, 18,560.04 and 3,607.12

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Solution

The fourth proportional to 12,374.56, 18,560.04 and 3,607.12 is: 5,410.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,374.56 : 18,560.04 = 3,607.12 : x
  2. Step 2: Convert to fraction form
    12,374.56/18,560.04 = 3,607.12/x
  3. Step 3: Cross multiply
    12,374.56x = 18,560.04 × 3,607.12
  4. Step 4: Simplify right side
    12,374.56x = 66,948,291.48
  5. Step 5: Solve for x
    x = 66,948,291.48/12,374.56
  6. Step 6: Final answer
    x = 5,410.16

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1.5x scale

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.