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Finding the Fourth Proportional to 32,172.78, 48,279.06 and 15,534.48

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Solution

The fourth proportional to 32,172.78, 48,279.06 and 15,534.48 is: 23,311.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,172.78 : 48,279.06 = 15,534.48 : x
  2. Step 2: Convert to fraction form
    32,172.78/48,279.06 = 15,534.48/x
  3. Step 3: Cross multiply
    32,172.78x = 48,279.06 × 15,534.48
  4. Step 4: Simplify right side
    32,172.78x = 749,990,091.99
  5. Step 5: Solve for x
    x = 749,990,091.99/32,172.78
  6. Step 6: Final answer
    x = 23,311.32

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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.