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Finding the Fourth Proportional to 55,885.70, 83,828.55 and 52,167.80

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Solution

The fourth proportional to 55,885.70, 83,828.55 and 52,167.80 is: 78,251.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,885.70 : 83,828.55 = 52,167.80 : x
  2. Step 2: Convert to fraction form
    55,885.70/83,828.55 = 52,167.80/x
  3. Step 3: Cross multiply
    55,885.70x = 83,828.55 × 52,167.80
  4. Step 4: Simplify right side
    55,885.70x = 4,373,151,030.69
  5. Step 5: Solve for x
    x = 4,373,151,030.69/55,885.70
  6. Step 6: Final answer
    x = 78,251.70

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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.