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Finding the Fourth Proportional to 14,937.13, 20,612.05 and 8,563.65

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Solution

The fourth proportional to 14,937.13, 20,612.05 and 8,563.65 is: 11,817.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,937.13 : 20,612.05 = 8,563.65 : x
  2. Step 2: Convert to fraction form
    14,937.13/20,612.05 = 8,563.65/x
  3. Step 3: Cross multiply
    14,937.13x = 20,612.05 × 8,563.65
  4. Step 4: Simplify right side
    14,937.13x = 176,514,381.98
  5. Step 5: Solve for x
    x = 176,514,381.98/14,937.13
  6. Step 6: Final answer
    x = 11,817.16

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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.