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Finding the Fourth Proportional to 32,518.74, 48,784.90 and 18,485.22

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Solution

The fourth proportional to 32,518.74, 48,784.90 and 18,485.22 is: 27,731.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,518.74 : 48,784.90 = 18,485.22 : x
  2. Step 2: Convert to fraction form
    32,518.74/48,784.90 = 18,485.22/x
  3. Step 3: Cross multiply
    32,518.74x = 48,784.90 × 18,485.22
  4. Step 4: Simplify right side
    32,518.74x = 901,799,609.18
  5. Step 5: Solve for x
    x = 901,799,609.18/32,518.74
  6. Step 6: Final answer
    x = 27,731.69

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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.