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Finding the Fourth Proportional to 72,176.66, 108,252.22 and 19,590.24

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Solution

The fourth proportional to 72,176.66, 108,252.22 and 19,590.24 is: 29,381.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,176.66 : 108,252.22 = 19,590.24 : x
  2. Step 2: Convert to fraction form
    72,176.66/108,252.22 = 19,590.24/x
  3. Step 3: Cross multiply
    72,176.66x = 108,252.22 × 19,590.24
  4. Step 4: Simplify right side
    72,176.66x = 2,120,686,970.33
  5. Step 5: Solve for x
    x = 2,120,686,970.33/72,176.66
  6. Step 6: Final answer
    x = 29,381.89

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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.