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Finding the Fourth Proportional to 38,648.80, 58,016.40 and 29,922.40

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Solution

The fourth proportional to 38,648.80, 58,016.40 and 29,922.40 is: 44,917.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,648.80 : 58,016.40 = 29,922.40 : x
  2. Step 2: Convert to fraction form
    38,648.80/58,016.40 = 29,922.40/x
  3. Step 3: Cross multiply
    38,648.80x = 58,016.40 × 29,922.40
  4. Step 4: Simplify right side
    38,648.80x = 1,735,989,927.36
  5. Step 5: Solve for x
    x = 1,735,989,927.36/38,648.80
  6. Step 6: Final answer
    x = 44,917.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.