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Finding the Fourth Proportional to 28,614.03, 42,926.42 and 11,518.22

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Solution

The fourth proportional to 28,614.03, 42,926.42 and 11,518.22 is: 17,279.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,614.03 : 42,926.42 = 11,518.22 : x
  2. Step 2: Convert to fraction form
    28,614.03/42,926.42 = 11,518.22/x
  3. Step 3: Cross multiply
    28,614.03x = 42,926.42 × 11,518.22
  4. Step 4: Simplify right side
    28,614.03x = 494,436,085.48
  5. Step 5: Solve for x
    x = 494,436,085.48/28,614.03
  6. Step 6: Final answer
    x = 17,279.50

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1.5x scale

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.