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Finding the Fourth Proportional to 28,946.62, 43,426.62 and 9,225.16

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Solution

The fourth proportional to 28,946.62, 43,426.62 and 9,225.16 is: 13,839.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,946.62 : 43,426.62 = 9,225.16 : x
  2. Step 2: Convert to fraction form
    28,946.62/43,426.62 = 9,225.16/x
  3. Step 3: Cross multiply
    28,946.62x = 43,426.62 × 9,225.16
  4. Step 4: Simplify right side
    28,946.62x = 400,617,517.76
  5. Step 5: Solve for x
    x = 400,617,517.76/28,946.62
  6. Step 6: Final answer
    x = 13,839.87

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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.