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Finding the Fourth Proportional to 61,614.78, 85,028.40 and 33,320.46

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Solution

The fourth proportional to 61,614.78, 85,028.40 and 33,320.46 is: 45,982.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,614.78 : 85,028.40 = 33,320.46 : x
  2. Step 2: Convert to fraction form
    61,614.78/85,028.40 = 33,320.46/x
  3. Step 3: Cross multiply
    61,614.78x = 85,028.40 × 33,320.46
  4. Step 4: Simplify right side
    61,614.78x = 2,833,185,401.06
  5. Step 5: Solve for x
    x = 2,833,185,401.06/61,614.78
  6. Step 6: Final answer
    x = 45,982.24

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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.