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Finding the Fourth Proportional to 29,335.25, 40,482.61 and 15,906.49

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Solution

The fourth proportional to 29,335.25, 40,482.61 and 15,906.49 is: 21,950.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,335.25 : 40,482.61 = 15,906.49 : x
  2. Step 2: Convert to fraction form
    29,335.25/40,482.61 = 15,906.49/x
  3. Step 3: Cross multiply
    29,335.25x = 40,482.61 × 15,906.49
  4. Step 4: Simplify right side
    29,335.25x = 643,935,949.19
  5. Step 5: Solve for x
    x = 643,935,949.19/29,335.25
  6. Step 6: Final answer
    x = 21,950.93

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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.