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Finding the Fourth Proportional to 61,844.76, 85,358.07 and 34,987.32

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Solution

The fourth proportional to 61,844.76, 85,358.07 and 34,987.32 is: 48,289.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    61,844.76 : 85,358.07 = 34,987.32 : x
  2. Step 2: Convert to fraction form
    61,844.76/85,358.07 = 34,987.32/x
  3. Step 3: Cross multiply
    61,844.76x = 85,358.07 × 34,987.32
  4. Step 4: Simplify right side
    61,844.76x = 2,986,450,109.67
  5. Step 5: Solve for x
    x = 2,986,450,109.67/61,844.76
  6. Step 6: Final answer
    x = 48,289.46

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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.