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Finding the Fourth Proportional to 29,602.61, 40,823.78 and 22,065.65

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Solution

The fourth proportional to 29,602.61, 40,823.78 and 22,065.65 is: 30,429.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,602.61 : 40,823.78 = 22,065.65 : x
  2. Step 2: Convert to fraction form
    29,602.61/40,823.78 = 22,065.65/x
  3. Step 3: Cross multiply
    29,602.61x = 40,823.78 × 22,065.65
  4. Step 4: Simplify right side
    29,602.61x = 900,802,926.71
  5. Step 5: Solve for x
    x = 900,802,926.71/29,602.61
  6. Step 6: Final answer
    x = 30,429.85

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Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.