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Finding the Fourth Proportional to 55,543.92, 83,315.88 and 13,994.16

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Solution

The fourth proportional to 55,543.92, 83,315.88 and 13,994.16 is: 20,991.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,543.92 : 83,315.88 = 13,994.16 : x
  2. Step 2: Convert to fraction form
    55,543.92/83,315.88 = 13,994.16/x
  3. Step 3: Cross multiply
    55,543.92x = 83,315.88 × 13,994.16
  4. Step 4: Simplify right side
    55,543.92x = 1,165,935,755.26
  5. Step 5: Solve for x
    x = 1,165,935,755.26/55,543.92
  6. Step 6: Final answer
    x = 20,991.24

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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.