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Finding the Fourth Proportional to 43,340.84, 65,007.48 and 11,749.76

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Solution

The fourth proportional to 43,340.84, 65,007.48 and 11,749.76 is: 17,623.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,340.84 : 65,007.48 = 11,749.76 : x
  2. Step 2: Convert to fraction form
    43,340.84/65,007.48 = 11,749.76/x
  3. Step 3: Cross multiply
    43,340.84x = 65,007.48 × 11,749.76
  4. Step 4: Simplify right side
    43,340.84x = 763,822,288.20
  5. Step 5: Solve for x
    x = 763,822,288.20/43,340.84
  6. Step 6: Final answer
    x = 17,623.62

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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.