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Finding the Fourth Proportional to 6,710.79, 9,260.69 and 3,839.59

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Solution

The fourth proportional to 6,710.79, 9,260.69 and 3,839.59 is: 5,298.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,710.79 : 9,260.69 = 3,839.59 : x
  2. Step 2: Convert to fraction form
    6,710.79/9,260.69 = 3,839.59/x
  3. Step 3: Cross multiply
    6,710.79x = 9,260.69 × 3,839.59
  4. Step 4: Simplify right side
    6,710.79x = 35,557,259.07
  5. Step 5: Solve for x
    x = 35,557,259.07/6,710.79
  6. Step 6: Final answer
    x = 5,298.52

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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.