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Finding the Fourth Proportional to 28,894.52, 39,875.22 and 16,319.27

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Solution

The fourth proportional to 28,894.52, 39,875.22 and 16,319.27 is: 22,521.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,894.52 : 39,875.22 = 16,319.27 : x
  2. Step 2: Convert to fraction form
    28,894.52/39,875.22 = 16,319.27/x
  3. Step 3: Cross multiply
    28,894.52x = 39,875.22 × 16,319.27
  4. Step 4: Simplify right side
    28,894.52x = 650,734,282.11
  5. Step 5: Solve for x
    x = 650,734,282.11/28,894.52
  6. Step 6: Final answer
    x = 22,521.03

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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.