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Finding the Fourth Proportional to 28,292.52, 39,044.52 and 16,354.80

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Solution

The fourth proportional to 28,292.52, 39,044.52 and 16,354.80 is: 22,570.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,292.52 : 39,044.52 = 16,354.80 : x
  2. Step 2: Convert to fraction form
    28,292.52/39,044.52 = 16,354.80/x
  3. Step 3: Cross multiply
    28,292.52x = 39,044.52 × 16,354.80
  4. Step 4: Simplify right side
    28,292.52x = 638,565,315.70
  5. Step 5: Solve for x
    x = 638,565,315.70/28,292.52
  6. Step 6: Final answer
    x = 22,570.11

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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.