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Finding the Fourth Proportional to 29,148.60, 43,722.90 and 15,295.80

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Solution

The fourth proportional to 29,148.60, 43,722.90 and 15,295.80 is: 22,943.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,148.60 : 43,722.90 = 15,295.80 : x
  2. Step 2: Convert to fraction form
    29,148.60/43,722.90 = 15,295.80/x
  3. Step 3: Cross multiply
    29,148.60x = 43,722.90 × 15,295.80
  4. Step 4: Simplify right side
    29,148.60x = 668,776,733.82
  5. Step 5: Solve for x
    x = 668,776,733.82/29,148.60
  6. Step 6: Final answer
    x = 22,943.70

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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.