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Finding the Fourth Proportional to 40,471.01, 60,669.53 and 14,161.40

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Solution

The fourth proportional to 40,471.01, 60,669.53 and 14,161.40 is: 21,229.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,471.01 : 60,669.53 = 14,161.40 : x
  2. Step 2: Convert to fraction form
    40,471.01/60,669.53 = 14,161.40/x
  3. Step 3: Cross multiply
    40,471.01x = 60,669.53 × 14,161.40
  4. Step 4: Simplify right side
    40,471.01x = 859,165,482.14
  5. Step 5: Solve for x
    x = 859,165,482.14/40,471.01
  6. Step 6: Final answer
    x = 21,229.16

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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.