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Finding the Fourth Proportional to 21,574.84, 32,367.48 and 11,040.52

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Solution

The fourth proportional to 21,574.84, 32,367.48 and 11,040.52 is: 16,563.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,574.84 : 32,367.48 = 11,040.52 : x
  2. Step 2: Convert to fraction form
    21,574.84/32,367.48 = 11,040.52/x
  3. Step 3: Cross multiply
    21,574.84x = 32,367.48 × 11,040.52
  4. Step 4: Simplify right side
    21,574.84x = 357,353,810.29
  5. Step 5: Solve for x
    x = 357,353,810.29/21,574.84
  6. Step 6: Final answer
    x = 16,563.45

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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.