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Finding the Fourth Proportional to 7,693.80, 10,618.22 and 4,711.60

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Solution

The fourth proportional to 7,693.80, 10,618.22 and 4,711.60 is: 6,502.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,693.80 : 10,618.22 = 4,711.60 : x
  2. Step 2: Convert to fraction form
    7,693.80/10,618.22 = 4,711.60/x
  3. Step 3: Cross multiply
    7,693.80x = 10,618.22 × 4,711.60
  4. Step 4: Simplify right side
    7,693.80x = 50,028,805.35
  5. Step 5: Solve for x
    x = 50,028,805.35/7,693.80
  6. Step 6: Final answer
    x = 6,502.48

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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.