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Finding the Fourth Proportional to 22,999.70, 34,499.55 and 8,209.10

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Solution

The fourth proportional to 22,999.70, 34,499.55 and 8,209.10 is: 12,313.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,999.70 : 34,499.55 = 8,209.10 : x
  2. Step 2: Convert to fraction form
    22,999.70/34,499.55 = 8,209.10/x
  3. Step 3: Cross multiply
    22,999.70x = 34,499.55 × 8,209.10
  4. Step 4: Simplify right side
    22,999.70x = 283,210,255.91
  5. Step 5: Solve for x
    x = 283,210,255.91/22,999.70
  6. Step 6: Final answer
    x = 12,313.65

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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 (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.