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Finding the Fourth Proportional to 61,873.92, 85,381.28 and 36,381.32

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Solution

The fourth proportional to 61,873.92, 85,381.28 and 36,381.32 is: 50,203.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,873.92 : 85,381.28 = 36,381.32 : x
  2. Step 2: Convert to fraction form
    61,873.92/85,381.28 = 36,381.32/x
  3. Step 3: Cross multiply
    61,873.92x = 85,381.28 × 36,381.32
  4. Step 4: Simplify right side
    61,873.92x = 3,106,283,669.69
  5. Step 5: Solve for x
    x = 3,106,283,669.69/61,873.92
  6. Step 6: Final answer
    x = 50,203.44

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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.