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Finding the Fourth Proportional to 15,693.98, 23,535.97 and 5,161.59

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Solution

The fourth proportional to 15,693.98, 23,535.97 and 5,161.59 is: 7,740.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,693.98 : 23,535.97 = 5,161.59 : x
  2. Step 2: Convert to fraction form
    15,693.98/23,535.97 = 5,161.59/x
  3. Step 3: Cross multiply
    15,693.98x = 23,535.97 × 5,161.59
  4. Step 4: Simplify right side
    15,693.98x = 121,483,014.49
  5. Step 5: Solve for x
    x = 121,483,014.49/15,693.98
  6. Step 6: Final answer
    x = 7,740.74

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.