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Finding the Fourth Proportional to 61,851.50, 85,355.07 and 33,557.18

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Solution

The fourth proportional to 61,851.50, 85,355.07 and 33,557.18 is: 46,308.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,851.50 : 85,355.07 = 33,557.18 : x
  2. Step 2: Convert to fraction form
    61,851.50/85,355.07 = 33,557.18/x
  3. Step 3: Cross multiply
    61,851.50x = 85,355.07 × 33,557.18
  4. Step 4: Simplify right side
    61,851.50x = 2,864,275,447.90
  5. Step 5: Solve for x
    x = 2,864,275,447.90/61,851.50
  6. Step 6: Final answer
    x = 46,308.91

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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.