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Finding the Fourth Proportional to 6,887.89, 9,434.04 and 6,483.96

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Solution

The fourth proportional to 6,887.89, 9,434.04 and 6,483.96 is: 8,880.79

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,887.89 : 9,434.04 = 6,483.96 : x
  2. Step 2: Convert to fraction form
    6,887.89/9,434.04 = 6,483.96/x
  3. Step 3: Cross multiply
    6,887.89x = 9,434.04 × 6,483.96
  4. Step 4: Simplify right side
    6,887.89x = 61,169,938.00
  5. Step 5: Solve for x
    x = 61,169,938.00/6,887.89
  6. Step 6: Final answer
    x = 8,880.79

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.