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Finding the Fourth Proportional to 61,365.89, 84,685.44 and 34,508.16

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Solution

The fourth proportional to 61,365.89, 84,685.44 and 34,508.16 is: 47,621.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,365.89 : 84,685.44 = 34,508.16 : x
  2. Step 2: Convert to fraction form
    61,365.89/84,685.44 = 34,508.16/x
  3. Step 3: Cross multiply
    61,365.89x = 84,685.44 × 34,508.16
  4. Step 4: Simplify right side
    61,365.89x = 2,922,338,713.19
  5. Step 5: Solve for x
    x = 2,922,338,713.19/61,365.89
  6. Step 6: Final answer
    x = 47,621.55

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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.