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Finding the Fourth Proportional to 61,555.95, 84,947.22 and 33,261.63

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Solution

The fourth proportional to 61,555.95, 84,947.22 and 33,261.63 is: 45,901.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,555.95 : 84,947.22 = 33,261.63 : x
  2. Step 2: Convert to fraction form
    61,555.95/84,947.22 = 33,261.63/x
  3. Step 3: Cross multiply
    61,555.95x = 84,947.22 × 33,261.63
  4. Step 4: Simplify right side
    61,555.95x = 2,825,483,001.17
  5. Step 5: Solve for x
    x = 2,825,483,001.17/61,555.95
  6. Step 6: Final answer
    x = 45,901.05

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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.