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Finding the Fourth Proportional to 61,918.50, 85,447.86 and 35,066.24

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Solution

The fourth proportional to 61,918.50, 85,447.86 and 35,066.24 is: 48,391.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,918.50 : 85,447.86 = 35,066.24 : x
  2. Step 2: Convert to fraction form
    61,918.50/85,447.86 = 35,066.24/x
  3. Step 3: Cross multiply
    61,918.50x = 85,447.86 × 35,066.24
  4. Step 4: Simplify right side
    61,918.50x = 2,996,335,190.93
  5. Step 5: Solve for x
    x = 2,996,335,190.93/61,918.50
  6. Step 6: Final answer
    x = 48,391.60

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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.