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Finding the Fourth Proportional to 7,843.13, 10,823.24 and 4,257.93

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Solution

The fourth proportional to 7,843.13, 10,823.24 and 4,257.93 is: 5,875.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,843.13 : 10,823.24 = 4,257.93 : x
  2. Step 2: Convert to fraction form
    7,843.13/10,823.24 = 4,257.93/x
  3. Step 3: Cross multiply
    7,843.13x = 10,823.24 × 4,257.93
  4. Step 4: Simplify right side
    7,843.13x = 46,084,598.29
  5. Step 5: Solve for x
    x = 46,084,598.29/7,843.13
  6. Step 6: Final answer
    x = 5,875.79

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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.