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Finding the Fourth Proportional to 38,378.40, 52,990.08 and 33,064.08

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Solution

The fourth proportional to 38,378.40, 52,990.08 and 33,064.08 is: 45,652.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,378.40 : 52,990.08 = 33,064.08 : x
  2. Step 2: Convert to fraction form
    38,378.40/52,990.08 = 33,064.08/x
  3. Step 3: Cross multiply
    38,378.40x = 52,990.08 × 33,064.08
  4. Step 4: Simplify right side
    38,378.40x = 1,752,068,244.33
  5. Step 5: Solve for x
    x = 1,752,068,244.33/38,378.40
  6. Step 6: Final answer
    x = 45,652.46

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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.