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Finding the Fourth Proportional to 7,063.79, 9,747.84 and 3,877.07

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Solution

The fourth proportional to 7,063.79, 9,747.84 and 3,877.07 is: 5,350.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,063.79 : 9,747.84 = 3,877.07 : x
  2. Step 2: Convert to fraction form
    7,063.79/9,747.84 = 3,877.07/x
  3. Step 3: Cross multiply
    7,063.79x = 9,747.84 × 3,877.07
  4. Step 4: Simplify right side
    7,063.79x = 37,793,058.03
  5. Step 5: Solve for x
    x = 37,793,058.03/7,063.79
  6. Step 6: Final answer
    x = 5,350.25

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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.