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Finding the Fourth Proportional to 61,877.52, 85,389.75 and 35,019.54

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Solution

The fourth proportional to 61,877.52, 85,389.75 and 35,019.54 is: 48,326.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,877.52 : 85,389.75 = 35,019.54 : x
  2. Step 2: Convert to fraction form
    61,877.52/85,389.75 = 35,019.54/x
  3. Step 3: Cross multiply
    61,877.52x = 85,389.75 × 35,019.54
  4. Step 4: Simplify right side
    61,877.52x = 2,990,309,765.72
  5. Step 5: Solve for x
    x = 2,990,309,765.72/61,877.52
  6. Step 6: Final answer
    x = 48,326.27

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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.