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Finding the Fourth Proportional to 21,482.46, 29,645.67 and 12,051

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Solution

The fourth proportional to 21,482.46, 29,645.67 and 12,051 is: 16,630.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,482.46 : 29,645.67 = 12,051 : x
  2. Step 2: Convert to fraction form
    21,482.46/29,645.67 = 12,051/x
  3. Step 3: Cross multiply
    21,482.46x = 29,645.67 × 12,051
  4. Step 4: Simplify right side
    21,482.46x = 357,259,969.17
  5. Step 5: Solve for x
    x = 357,259,969.17/21,482.46
  6. Step 6: Final answer
    x = 16,630.31

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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.