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Finding the Fourth Proportional to 64,281.81, 88,712.97 and 35,987.49

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Solution

The fourth proportional to 64,281.81, 88,712.97 and 35,987.49 is: 49,665.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,281.81 : 88,712.97 = 35,987.49 : x
  2. Step 2: Convert to fraction form
    64,281.81/88,712.97 = 35,987.49/x
  3. Step 3: Cross multiply
    64,281.81x = 88,712.97 × 35,987.49
  4. Step 4: Simplify right side
    64,281.81x = 3,192,557,120.75
  5. Step 5: Solve for x
    x = 3,192,557,120.75/64,281.81
  6. Step 6: Final answer
    x = 49,665.02

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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.