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Finding the Fourth Proportional to 6,879.59, 9,483.85 and 5,084.43

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Solution

The fourth proportional to 6,879.59, 9,483.85 and 5,084.43 is: 7,009.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,879.59 : 9,483.85 = 5,084.43 : x
  2. Step 2: Convert to fraction form
    6,879.59/9,483.85 = 5,084.43/x
  3. Step 3: Cross multiply
    6,879.59x = 9,483.85 × 5,084.43
  4. Step 4: Simplify right side
    6,879.59x = 48,219,971.46
  5. Step 5: Solve for x
    x = 48,219,971.46/6,879.59
  6. Step 6: Final answer
    x = 7,009.13

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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.