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Finding the Fourth Proportional to 61,518.96, 84,888.72 and 34,657.20

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Solution

The fourth proportional to 61,518.96, 84,888.72 and 34,657.20 is: 47,822.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,518.96 : 84,888.72 = 34,657.20 : x
  2. Step 2: Convert to fraction form
    61,518.96/84,888.72 = 34,657.20/x
  3. Step 3: Cross multiply
    61,518.96x = 84,888.72 × 34,657.20
  4. Step 4: Simplify right side
    61,518.96x = 2,942,005,346.78
  5. Step 5: Solve for x
    x = 2,942,005,346.78/61,518.96
  6. Step 6: Final answer
    x = 47,822.74

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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.