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Finding the Fourth Proportional to 32,696.90, 45,121.73 and 18,354.74

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Solution

The fourth proportional to 32,696.90, 45,121.73 and 18,354.74 is: 25,329.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,696.90 : 45,121.73 = 18,354.74 : x
  2. Step 2: Convert to fraction form
    32,696.90/45,121.73 = 18,354.74/x
  3. Step 3: Cross multiply
    32,696.90x = 45,121.73 × 18,354.74
  4. Step 4: Simplify right side
    32,696.90x = 828,197,305.12
  5. Step 5: Solve for x
    x = 828,197,305.12/32,696.90
  6. Step 6: Final answer
    x = 25,329.54

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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.