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Finding the Fourth Proportional to 9,754.77, 13,461.48 and 5,278.43

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Solution

The fourth proportional to 9,754.77, 13,461.48 and 5,278.43 is: 7,284.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,754.77 : 13,461.48 = 5,278.43 : x
  2. Step 2: Convert to fraction form
    9,754.77/13,461.48 = 5,278.43/x
  3. Step 3: Cross multiply
    9,754.77x = 13,461.48 × 5,278.43
  4. Step 4: Simplify right side
    9,754.77x = 71,055,432.36
  5. Step 5: Solve for x
    x = 71,055,432.36/9,754.77
  6. Step 6: Final answer
    x = 7,284.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.