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Finding the Fourth Proportional to 31,658.47, 43,888.47 and 29,973.13

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Solution

The fourth proportional to 31,658.47, 43,888.47 and 29,973.13 is: 41,552.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    31,658.47 : 43,888.47 = 29,973.13 : x
  2. Step 2: Convert to fraction form
    31,658.47/43,888.47 = 29,973.13/x
  3. Step 3: Cross multiply
    31,658.47x = 43,888.47 × 29,973.13
  4. Step 4: Simplify right side
    31,658.47x = 1,315,474,763.29
  5. Step 5: Solve for x
    x = 1,315,474,763.29/31,658.47
  6. Step 6: Final answer
    x = 41,552.07

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.39) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.