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Finding the Fourth Proportional to 55,810.58, 83,713.71 and 18,874.58

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Solution

The fourth proportional to 55,810.58, 83,713.71 and 18,874.58 is: 28,311.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,810.58 : 83,713.71 = 18,874.58 : x
  2. Step 2: Convert to fraction form
    55,810.58/83,713.71 = 18,874.58/x
  3. Step 3: Cross multiply
    55,810.58x = 83,713.71 × 18,874.58
  4. Step 4: Simplify right side
    55,810.58x = 1,580,061,116.49
  5. Step 5: Solve for x
    x = 1,580,061,116.49/55,810.58
  6. Step 6: Final answer
    x = 28,311.14

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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.