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Finding the Fourth Proportional to 28,941.70, 43,412.55 and 10,471.30

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Solution

The fourth proportional to 28,941.70, 43,412.55 and 10,471.30 is: 15,706.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,941.70 : 43,412.55 = 10,471.30 : x
  2. Step 2: Convert to fraction form
    28,941.70/43,412.55 = 10,471.30/x
  3. Step 3: Cross multiply
    28,941.70x = 43,412.55 × 10,471.30
  4. Step 4: Simplify right side
    28,941.70x = 454,585,834.82
  5. Step 5: Solve for x
    x = 454,585,834.82/28,941.70
  6. Step 6: Final answer
    x = 15,706.95

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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.