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Finding the Fourth Proportional to 7,854.84, 10,840.26 and 4,318.14

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Solution

The fourth proportional to 7,854.84, 10,840.26 and 4,318.14 is: 5,959.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,854.84 : 10,840.26 = 4,318.14 : x
  2. Step 2: Convert to fraction form
    7,854.84/10,840.26 = 4,318.14/x
  3. Step 3: Cross multiply
    7,854.84x = 10,840.26 × 4,318.14
  4. Step 4: Simplify right side
    7,854.84x = 46,809,760.32
  5. Step 5: Solve for x
    x = 46,809,760.32/7,854.84
  6. Step 6: Final answer
    x = 5,959.35

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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.