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Finding the Fourth Proportional to 29,673.50, 40,930.98 and 18,346.46

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Solution

The fourth proportional to 29,673.50, 40,930.98 and 18,346.46 is: 25,306.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,673.50 : 40,930.98 = 18,346.46 : x
  2. Step 2: Convert to fraction form
    29,673.50/40,930.98 = 18,346.46/x
  3. Step 3: Cross multiply
    29,673.50x = 40,930.98 × 18,346.46
  4. Step 4: Simplify right side
    29,673.50x = 750,938,382.68
  5. Step 5: Solve for x
    x = 750,938,382.68/29,673.50
  6. Step 6: Final answer
    x = 25,306.70

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1.5x scale

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.