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Finding the Fourth Proportional to 16,590.80, 24,886.20 and 14,085.20

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Solution

The fourth proportional to 16,590.80, 24,886.20 and 14,085.20 is: 21,127.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,590.80 : 24,886.20 = 14,085.20 : x
  2. Step 2: Convert to fraction form
    16,590.80/24,886.20 = 14,085.20/x
  3. Step 3: Cross multiply
    16,590.80x = 24,886.20 × 14,085.20
  4. Step 4: Simplify right side
    16,590.80x = 350,527,104.24
  5. Step 5: Solve for x
    x = 350,527,104.24/16,590.80
  6. Step 6: Final answer
    x = 21,127.80

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1.5x scale

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.