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Finding the Fourth Proportional to 26,658.63, 36,788.88 and 14,721.94

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Solution

The fourth proportional to 26,658.63, 36,788.88 and 14,721.94 is: 20,316.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,658.63 : 36,788.88 = 14,721.94 : x
  2. Step 2: Convert to fraction form
    26,658.63/36,788.88 = 14,721.94/x
  3. Step 3: Cross multiply
    26,658.63x = 36,788.88 × 14,721.94
  4. Step 4: Simplify right side
    26,658.63x = 541,603,592.06
  5. Step 5: Solve for x
    x = 541,603,592.06/26,658.63
  6. Step 6: Final answer
    x = 20,316.26

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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.