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Finding the Fourth Proportional to 18,714.71, 28,073.28 and 5,565.98

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Solution

The fourth proportional to 18,714.71, 28,073.28 and 5,565.98 is: 8,349.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,714.71 : 28,073.28 = 5,565.98 : x
  2. Step 2: Convert to fraction form
    18,714.71/28,073.28 = 5,565.98/x
  3. Step 3: Cross multiply
    18,714.71x = 28,073.28 × 5,565.98
  4. Step 4: Simplify right side
    18,714.71x = 156,255,315.01
  5. Step 5: Solve for x
    x = 156,255,315.01/18,714.71
  6. Step 6: Final answer
    x = 8,349.33

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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.