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Finding the Fourth Proportional to 61,375.98, 84,686.16 and 35,877.42

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Solution

The fourth proportional to 61,375.98, 84,686.16 and 35,877.42 is: 49,503.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,375.98 : 84,686.16 = 35,877.42 : x
  2. Step 2: Convert to fraction form
    61,375.98/84,686.16 = 35,877.42/x
  3. Step 3: Cross multiply
    61,375.98x = 84,686.16 × 35,877.42
  4. Step 4: Simplify right side
    61,375.98x = 3,038,320,744.15
  5. Step 5: Solve for x
    x = 3,038,320,744.15/61,375.98
  6. Step 6: Final answer
    x = 49,503.41

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.