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Finding the Fourth Proportional to 7,854.93, 10,840.01 and 4,318.34

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Solution

The fourth proportional to 7,854.93, 10,840.01 and 4,318.34 is: 5,959.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,854.93 : 10,840.01 = 4,318.34 : x
  2. Step 2: Convert to fraction form
    7,854.93/10,840.01 = 4,318.34/x
  3. Step 3: Cross multiply
    7,854.93x = 10,840.01 × 4,318.34
  4. Step 4: Simplify right side
    7,854.93x = 46,810,772.99
  5. Step 5: Solve for x
    x = 46,810,772.99/7,854.93
  6. Step 6: Final answer
    x = 5,959.41

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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.