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Finding the Fourth Proportional to 32,615.85, 45,009.11 and 19,187.97

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Solution

The fourth proportional to 32,615.85, 45,009.11 and 19,187.97 is: 26,478.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,615.85 : 45,009.11 = 19,187.97 : x
  2. Step 2: Convert to fraction form
    32,615.85/45,009.11 = 19,187.97/x
  3. Step 3: Cross multiply
    32,615.85x = 45,009.11 × 19,187.97
  4. Step 4: Simplify right side
    32,615.85x = 863,633,339.88
  5. Step 5: Solve for x
    x = 863,633,339.88/32,615.85
  6. Step 6: Final answer
    x = 26,478.95

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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.