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Finding the Fourth Proportional to 8,833.35, 13,175.61 and 8,220.99

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Solution

The fourth proportional to 8,833.35, 13,175.61 and 8,220.99 is: 12,262.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,833.35 : 13,175.61 = 8,220.99 : x
  2. Step 2: Convert to fraction form
    8,833.35/13,175.61 = 8,220.99/x
  3. Step 3: Cross multiply
    8,833.35x = 13,175.61 × 8,220.99
  4. Step 4: Simplify right side
    8,833.35x = 108,316,558.05
  5. Step 5: Solve for x
    x = 108,316,558.05/8,833.35
  6. Step 6: Final answer
    x = 12,262.23

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Half scale
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Double scale
Find fourth proportional to 8,834.35, 13,177.10 and 8,221.99
Similar ratio
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.