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Finding the Fourth Proportional to 29,335.64, 40,482.76 and 15,906.64

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Solution

The fourth proportional to 29,335.64, 40,482.76 and 15,906.64 is: 21,950.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,335.64 : 40,482.76 = 15,906.64 : x
  2. Step 2: Convert to fraction form
    29,335.64/40,482.76 = 15,906.64/x
  3. Step 3: Cross multiply
    29,335.64x = 40,482.76 × 15,906.64
  4. Step 4: Simplify right side
    29,335.64x = 643,944,689.53
  5. Step 5: Solve for x
    x = 643,944,689.53/29,335.64
  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.