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Finding the Fourth Proportional to 21,701.15, 32,552.99 and 8,374.22

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Solution

The fourth proportional to 21,701.15, 32,552.99 and 8,374.22 is: 12,561.81

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,701.15 : 32,552.99 = 8,374.22 : x
  2. Step 2: Convert to fraction form
    21,701.15/32,552.99 = 8,374.22/x
  3. Step 3: Cross multiply
    21,701.15x = 32,552.99 × 8,374.22
  4. Step 4: Simplify right side
    21,701.15x = 272,605,695.28
  5. Step 5: Solve for x
    x = 272,605,695.28/21,701.15
  6. Step 6: Final answer
    x = 12,561.81

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.