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Finding the Fourth Proportional to 21,562.64, 29,745.90 and 14,010.20

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Solution

The fourth proportional to 21,562.64, 29,745.90 and 14,010.20 is: 19,327.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,562.64 : 29,745.90 = 14,010.20 : x
  2. Step 2: Convert to fraction form
    21,562.64/29,745.90 = 14,010.20/x
  3. Step 3: Cross multiply
    21,562.64x = 29,745.90 × 14,010.20
  4. Step 4: Simplify right side
    21,562.64x = 416,746,008.18
  5. Step 5: Solve for x
    x = 416,746,008.18/21,562.64
  6. Step 6: Final answer
    x = 19,327.23

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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.