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Finding the Fourth Proportional to 29,671.90, 40,966.32 and 26,479.72

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Solution

The fourth proportional to 29,671.90, 40,966.32 and 26,479.72 is: 36,559.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,671.90 : 40,966.32 = 26,479.72 : x
  2. Step 2: Convert to fraction form
    29,671.90/40,966.32 = 26,479.72/x
  3. Step 3: Cross multiply
    29,671.90x = 40,966.32 × 26,479.72
  4. Step 4: Simplify right side
    29,671.90x = 1,084,776,544.40
  5. Step 5: Solve for x
    x = 1,084,776,544.40/29,671.90
  6. Step 6: Final answer
    x = 36,559.05

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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.