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Finding the Fourth Proportional to 14,337.50, 19,785.72 and 8,049.86

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Solution

The fourth proportional to 14,337.50, 19,785.72 and 8,049.86 is: 11,108.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,337.50 : 19,785.72 = 8,049.86 : x
  2. Step 2: Convert to fraction form
    14,337.50/19,785.72 = 8,049.86/x
  3. Step 3: Cross multiply
    14,337.50x = 19,785.72 × 8,049.86
  4. Step 4: Simplify right side
    14,337.50x = 159,272,276.00
  5. Step 5: Solve for x
    x = 159,272,276.00/14,337.50
  6. Step 6: Final answer
    x = 11,108.79

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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.