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Finding the Fourth Proportional to 42,844.44, 64,264.76 and 11,679.70

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Solution

The fourth proportional to 42,844.44, 64,264.76 and 11,679.70 is: 17,519.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,844.44 : 64,264.76 = 11,679.70 : x
  2. Step 2: Convert to fraction form
    42,844.44/64,264.76 = 11,679.70/x
  3. Step 3: Cross multiply
    42,844.44x = 64,264.76 × 11,679.70
  4. Step 4: Simplify right side
    42,844.44x = 750,593,117.37
  5. Step 5: Solve for x
    x = 750,593,117.37/42,844.44
  6. Step 6: Final answer
    x = 17,519.03

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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.