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Finding the Fourth Proportional to 61,726.14, 85,189 and 34,870.39

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Solution

The fourth proportional to 61,726.14, 85,189 and 34,870.39 is: 48,125.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,726.14 : 85,189 = 34,870.39 : x
  2. Step 2: Convert to fraction form
    61,726.14/85,189 = 34,870.39/x
  3. Step 3: Cross multiply
    61,726.14x = 85,189 × 34,870.39
  4. Step 4: Simplify right side
    61,726.14x = 2,970,573,653.71
  5. Step 5: Solve for x
    x = 2,970,573,653.71/61,726.14
  6. Step 6: Final answer
    x = 48,125.05

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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.