Home / 14,609.04-20,170.20-8,642.62

Finding the Fourth Proportional to 14,609.04, 20,170.20 and 8,642.62

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Solution

The fourth proportional to 14,609.04, 20,170.20 and 8,642.62 is: 11,932.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,609.04 : 20,170.20 = 8,642.62 : x
  2. Step 2: Convert to fraction form
    14,609.04/20,170.20 = 8,642.62/x
  3. Step 3: Cross multiply
    14,609.04x = 20,170.20 × 8,642.62
  4. Step 4: Simplify right side
    14,609.04x = 174,323,373.92
  5. Step 5: Solve for x
    x = 174,323,373.92/14,609.04
  6. Step 6: Final answer
    x = 11,932.57

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Half scale
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Double scale
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Similar ratio
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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.