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Finding the Fourth Proportional to 61,587.93, 84,991 and 34,730.66

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Solution

The fourth proportional to 61,587.93, 84,991 and 34,730.66 is: 47,928.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,587.93 : 84,991 = 34,730.66 : x
  2. Step 2: Convert to fraction form
    61,587.93/84,991 = 34,730.66/x
  3. Step 3: Cross multiply
    61,587.93x = 84,991 × 34,730.66
  4. Step 4: Simplify right side
    61,587.93x = 2,951,793,524.06
  5. Step 5: Solve for x
    x = 2,951,793,524.06/61,587.93
  6. Step 6: Final answer
    x = 47,928.12

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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.