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Finding the Fourth Proportional to 40,744.90, 61,128.15 and 14,446.90

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Solution

The fourth proportional to 40,744.90, 61,128.15 and 14,446.90 is: 21,674.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,744.90 : 61,128.15 = 14,446.90 : x
  2. Step 2: Convert to fraction form
    40,744.90/61,128.15 = 14,446.90/x
  3. Step 3: Cross multiply
    40,744.90x = 61,128.15 × 14,446.90
  4. Step 4: Simplify right side
    40,744.90x = 883,112,270.24
  5. Step 5: Solve for x
    x = 883,112,270.24/40,744.90
  6. Step 6: Final answer
    x = 21,674.18

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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.