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Finding the Fourth Proportional to 29,239.92, 40,354.80 and 19,176.80

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Solution

The fourth proportional to 29,239.92, 40,354.80 and 19,176.80 is: 26,466.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,239.92 : 40,354.80 = 19,176.80 : x
  2. Step 2: Convert to fraction form
    29,239.92/40,354.80 = 19,176.80/x
  3. Step 3: Cross multiply
    29,239.92x = 40,354.80 × 19,176.80
  4. Step 4: Simplify right side
    29,239.92x = 773,875,928.64
  5. Step 5: Solve for x
    x = 773,875,928.64/29,239.92
  6. Step 6: Final answer
    x = 26,466.42

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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.