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Finding the Fourth Proportional to 14,718.52, 20,311.65 and 8,004.22

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Solution

The fourth proportional to 14,718.52, 20,311.65 and 8,004.22 is: 11,045.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,718.52 : 20,311.65 = 8,004.22 : x
  2. Step 2: Convert to fraction form
    14,718.52/20,311.65 = 8,004.22/x
  3. Step 3: Cross multiply
    14,718.52x = 20,311.65 × 8,004.22
  4. Step 4: Simplify right side
    14,718.52x = 162,578,773.58
  5. Step 5: Solve for x
    x = 162,578,773.58/14,718.52
  6. Step 6: Final answer
    x = 11,045.87

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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.