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Finding the Fourth Proportional to 39,079.52, 53,928.48 and 22,084.40

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Solution

The fourth proportional to 39,079.52, 53,928.48 and 22,084.40 is: 30,475.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,079.52 : 53,928.48 = 22,084.40 : x
  2. Step 2: Convert to fraction form
    39,079.52/53,928.48 = 22,084.40/x
  3. Step 3: Cross multiply
    39,079.52x = 53,928.48 × 22,084.40
  4. Step 4: Simplify right side
    39,079.52x = 1,190,978,123.71
  5. Step 5: Solve for x
    x = 1,190,978,123.71/39,079.52
  6. Step 6: Final answer
    x = 30,475.76

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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.