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Finding the Fourth Proportional to 29,187.85, 43,785.02 and 12,549.57

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Solution

The fourth proportional to 29,187.85, 43,785.02 and 12,549.57 is: 18,825.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,187.85 : 43,785.02 = 12,549.57 : x
  2. Step 2: Convert to fraction form
    29,187.85/43,785.02 = 12,549.57/x
  3. Step 3: Cross multiply
    29,187.85x = 43,785.02 × 12,549.57
  4. Step 4: Simplify right side
    29,187.85x = 549,482,954.52
  5. Step 5: Solve for x
    x = 549,482,954.52/29,187.85
  6. Step 6: Final answer
    x = 18,825.74

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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.