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Finding the Fourth Proportional to 61,641.56, 85,066.05 and 34,784.39

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Solution

The fourth proportional to 61,641.56, 85,066.05 and 34,784.39 is: 48,002.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,641.56 : 85,066.05 = 34,784.39 : x
  2. Step 2: Convert to fraction form
    61,641.56/85,066.05 = 34,784.39/x
  3. Step 3: Cross multiply
    61,641.56x = 85,066.05 × 34,784.39
  4. Step 4: Simplify right side
    61,641.56x = 2,958,970,233.63
  5. Step 5: Solve for x
    x = 2,958,970,233.63/61,641.56
  6. Step 6: Final answer
    x = 48,002.85

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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.