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Finding the Fourth Proportional to 7,843.14, 10,823.76 and 4,700.34

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Solution

The fourth proportional to 7,843.14, 10,823.76 and 4,700.34 is: 6,486.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,843.14 : 10,823.76 = 4,700.34 : x
  2. Step 2: Convert to fraction form
    7,843.14/10,823.76 = 4,700.34/x
  3. Step 3: Cross multiply
    7,843.14x = 10,823.76 × 4,700.34
  4. Step 4: Simplify right side
    7,843.14x = 50,875,352.08
  5. Step 5: Solve for x
    x = 50,875,352.08/7,843.14
  6. Step 6: Final answer
    x = 6,486.61

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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.