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Finding the Fourth Proportional to 9,333.75, 12,881.49 and 6,971.79

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Solution

The fourth proportional to 9,333.75, 12,881.49 and 6,971.79 is: 9,621.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,333.75 : 12,881.49 = 6,971.79 : x
  2. Step 2: Convert to fraction form
    9,333.75/12,881.49 = 6,971.79/x
  3. Step 3: Cross multiply
    9,333.75x = 12,881.49 × 6,971.79
  4. Step 4: Simplify right side
    9,333.75x = 89,807,043.17
  5. Step 5: Solve for x
    x = 89,807,043.17/9,333.75
  6. Step 6: Final answer
    x = 9,621.75

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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.