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Finding the Fourth Proportional to 55,972.88, 83,987.44 and 34,907.44

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Solution

The fourth proportional to 55,972.88, 83,987.44 and 34,907.44 is: 52,378.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,972.88 : 83,987.44 = 34,907.44 : x
  2. Step 2: Convert to fraction form
    55,972.88/83,987.44 = 34,907.44/x
  3. Step 3: Cross multiply
    55,972.88x = 83,987.44 × 34,907.44
  4. Step 4: Simplify right side
    55,972.88x = 2,931,786,522.55
  5. Step 5: Solve for x
    x = 2,931,786,522.55/55,972.88
  6. Step 6: Final answer
    x = 52,378.70

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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.