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Finding the Fourth Proportional to 62,278.68, 85,944.82 and 33,985

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Solution

The fourth proportional to 62,278.68, 85,944.82 and 33,985 is: 46,899.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,278.68 : 85,944.82 = 33,985 : x
  2. Step 2: Convert to fraction form
    62,278.68/85,944.82 = 33,985/x
  3. Step 3: Cross multiply
    62,278.68x = 85,944.82 × 33,985
  4. Step 4: Simplify right side
    62,278.68x = 2,920,834,707.70
  5. Step 5: Solve for x
    x = 2,920,834,707.70/62,278.68
  6. Step 6: Final answer
    x = 46,899.43

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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.