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Finding the Fourth Proportional to 14,246.80, 19,658.92 and 8,941.20

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Solution

The fourth proportional to 14,246.80, 19,658.92 and 8,941.20 is: 12,337.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,246.80 : 19,658.92 = 8,941.20 : x
  2. Step 2: Convert to fraction form
    14,246.80/19,658.92 = 8,941.20/x
  3. Step 3: Cross multiply
    14,246.80x = 19,658.92 × 8,941.20
  4. Step 4: Simplify right side
    14,246.80x = 175,774,335.50
  5. Step 5: Solve for x
    x = 175,774,335.50/14,246.80
  6. Step 6: Final answer
    x = 12,337.81

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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.