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Finding the Fourth Proportional to 9,625.84, 13,283.28 and 5,434

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Solution

The fourth proportional to 9,625.84, 13,283.28 and 5,434 is: 7,498.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,625.84 : 13,283.28 = 5,434 : x
  2. Step 2: Convert to fraction form
    9,625.84/13,283.28 = 5,434/x
  3. Step 3: Cross multiply
    9,625.84x = 13,283.28 × 5,434
  4. Step 4: Simplify right side
    9,625.84x = 72,181,343.52
  5. Step 5: Solve for x
    x = 72,181,343.52/9,625.84
  6. Step 6: Final answer
    x = 7,498.71

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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.