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Finding the Fourth Proportional to 29,145.76, 43,706.57 and 9,148.57

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Solution

The fourth proportional to 29,145.76, 43,706.57 and 9,148.57 is: 13,719.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,145.76 : 43,706.57 = 9,148.57 : x
  2. Step 2: Convert to fraction form
    29,145.76/43,706.57 = 9,148.57/x
  3. Step 3: Cross multiply
    29,145.76x = 43,706.57 × 9,148.57
  4. Step 4: Simplify right side
    29,145.76x = 399,852,396.57
  5. Step 5: Solve for x
    x = 399,852,396.57/29,145.76
  6. Step 6: Final answer
    x = 13,719.06

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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.