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Finding the Fourth Proportional to 32,663.40, 45,078.84 and 19,238.88

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Solution

The fourth proportional to 32,663.40, 45,078.84 and 19,238.88 is: 26,551.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,663.40 : 45,078.84 = 19,238.88 : x
  2. Step 2: Convert to fraction form
    32,663.40/45,078.84 = 19,238.88/x
  3. Step 3: Cross multiply
    32,663.40x = 45,078.84 × 19,238.88
  4. Step 4: Simplify right side
    32,663.40x = 867,266,393.30
  5. Step 5: Solve for x
    x = 867,266,393.30/32,663.40
  6. Step 6: Final answer
    x = 26,551.63

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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.