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Finding the Fourth Proportional to 28,839.16, 43,258.74 and 6,951.16

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Solution

The fourth proportional to 28,839.16, 43,258.74 and 6,951.16 is: 10,426.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,839.16 : 43,258.74 = 6,951.16 : x
  2. Step 2: Convert to fraction form
    28,839.16/43,258.74 = 6,951.16/x
  3. Step 3: Cross multiply
    28,839.16x = 43,258.74 × 6,951.16
  4. Step 4: Simplify right side
    28,839.16x = 300,698,423.14
  5. Step 5: Solve for x
    x = 300,698,423.14/28,839.16
  6. Step 6: Final answer
    x = 10,426.74

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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.