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Finding the Fourth Proportional to 61,889.84, 85,452.36 and 38,048.48

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Solution

The fourth proportional to 61,889.84, 85,452.36 and 38,048.48 is: 52,534.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,889.84 : 85,452.36 = 38,048.48 : x
  2. Step 2: Convert to fraction form
    61,889.84/85,452.36 = 38,048.48/x
  3. Step 3: Cross multiply
    61,889.84x = 85,452.36 × 38,048.48
  4. Step 4: Simplify right side
    61,889.84x = 3,251,332,410.41
  5. Step 5: Solve for x
    x = 3,251,332,410.41/61,889.84
  6. Step 6: Final answer
    x = 52,534.19

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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.