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Finding the Fourth Proportional to 7,854.97, 10,839.94 and 4,318.26

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Solution

The fourth proportional to 7,854.97, 10,839.94 and 4,318.26 is: 5,959.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,854.97 : 10,839.94 = 4,318.26 : x
  2. Step 2: Convert to fraction form
    7,854.97/10,839.94 = 4,318.26/x
  3. Step 3: Cross multiply
    7,854.97x = 10,839.94 × 4,318.26
  4. Step 4: Simplify right side
    7,854.97x = 46,809,603.51
  5. Step 5: Solve for x
    x = 46,809,603.51/7,854.97
  6. Step 6: Final answer
    x = 5,959.23

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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.