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Finding the Fourth Proportional to 56,987.70, 85,454.70 and 33,302.09

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Solution

The fourth proportional to 56,987.70, 85,454.70 and 33,302.09 is: 49,937.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,987.70 : 85,454.70 = 33,302.09 : x
  2. Step 2: Convert to fraction form
    56,987.70/85,454.70 = 33,302.09/x
  3. Step 3: Cross multiply
    56,987.70x = 85,454.70 × 33,302.09
  4. Step 4: Simplify right side
    56,987.70x = 2,845,819,683.05
  5. Step 5: Solve for x
    x = 2,845,819,683.05/56,987.70
  6. Step 6: Final answer
    x = 49,937.44

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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.