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Finding the Fourth Proportional to 7,161.50, 9,883.95 and 4,368.62

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Solution

The fourth proportional to 7,161.50, 9,883.95 and 4,368.62 is: 6,029.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,161.50 : 9,883.95 = 4,368.62 : x
  2. Step 2: Convert to fraction form
    7,161.50/9,883.95 = 4,368.62/x
  3. Step 3: Cross multiply
    7,161.50x = 9,883.95 × 4,368.62
  4. Step 4: Simplify right side
    7,161.50x = 43,179,221.65
  5. Step 5: Solve for x
    x = 43,179,221.65/7,161.50
  6. Step 6: Final answer
    x = 6,029.35

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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.