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Finding the Fourth Proportional to 61,572.96, 84,970.72 and 33,278.66

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Solution

The fourth proportional to 61,572.96, 84,970.72 and 33,278.66 is: 45,924.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,572.96 : 84,970.72 = 33,278.66 : x
  2. Step 2: Convert to fraction form
    61,572.96/84,970.72 = 33,278.66/x
  3. Step 3: Cross multiply
    61,572.96x = 84,970.72 × 33,278.66
  4. Step 4: Simplify right side
    61,572.96x = 2,827,711,700.84
  5. Step 5: Solve for x
    x = 2,827,711,700.84/61,572.96
  6. Step 6: Final answer
    x = 45,924.57

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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.