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Finding the Fourth Proportional to 57,333.40, 86,000.10 and 51,209.80

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Solution

The fourth proportional to 57,333.40, 86,000.10 and 51,209.80 is: 76,814.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,333.40 : 86,000.10 = 51,209.80 : x
  2. Step 2: Convert to fraction form
    57,333.40/86,000.10 = 51,209.80/x
  3. Step 3: Cross multiply
    57,333.40x = 86,000.10 × 51,209.80
  4. Step 4: Simplify right side
    57,333.40x = 4,404,047,920.98
  5. Step 5: Solve for x
    x = 4,404,047,920.98/57,333.40
  6. Step 6: Final answer
    x = 76,814.70

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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.