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Finding the Fourth Proportional to 40,984.80, 61,477.20 and 14,680.08

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Solution

The fourth proportional to 40,984.80, 61,477.20 and 14,680.08 is: 22,020.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,984.80 : 61,477.20 = 14,680.08 : x
  2. Step 2: Convert to fraction form
    40,984.80/61,477.20 = 14,680.08/x
  3. Step 3: Cross multiply
    40,984.80x = 61,477.20 × 14,680.08
  4. Step 4: Simplify right side
    40,984.80x = 902,490,214.18
  5. Step 5: Solve for x
    x = 902,490,214.18/40,984.80
  6. Step 6: Final answer
    x = 22,020.12

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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.