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Finding the Fourth Proportional to 52,974, 79,497.45 and 21,809.25

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Solution

The fourth proportional to 52,974, 79,497.45 and 21,809.25 is: 32,728.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,974 : 79,497.45 = 21,809.25 : x
  2. Step 2: Convert to fraction form
    52,974/79,497.45 = 21,809.25/x
  3. Step 3: Cross multiply
    52,974x = 79,497.45 × 21,809.25
  4. Step 4: Simplify right side
    52,974x = 1,733,779,761.41
  5. Step 5: Solve for x
    x = 1,733,779,761.41/52,974
  6. Step 6: Final answer
    x = 32,728.88

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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.