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Finding the Fourth Proportional to 32,911.68, 45,418.68 and 18,764.76

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Solution

The fourth proportional to 32,911.68, 45,418.68 and 18,764.76 is: 25,895.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,911.68 : 45,418.68 = 18,764.76 : x
  2. Step 2: Convert to fraction form
    32,911.68/45,418.68 = 18,764.76/x
  3. Step 3: Cross multiply
    32,911.68x = 45,418.68 × 18,764.76
  4. Step 4: Simplify right side
    32,911.68x = 852,270,629.72
  5. Step 5: Solve for x
    x = 852,270,629.72/32,911.68
  6. Step 6: Final answer
    x = 25,895.69

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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.