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Finding the Fourth Proportional to 22,893.60, 34,168.74 and 21,398.91

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Solution

The fourth proportional to 22,893.60, 34,168.74 and 21,398.91 is: 31,937.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,893.60 : 34,168.74 = 21,398.91 : x
  2. Step 2: Convert to fraction form
    22,893.60/34,168.74 = 21,398.91/x
  3. Step 3: Cross multiply
    22,893.60x = 34,168.74 × 21,398.91
  4. Step 4: Simplify right side
    22,893.60x = 731,173,792.07
  5. Step 5: Solve for x
    x = 731,173,792.07/22,893.60
  6. Step 6: Final answer
    x = 31,937.91

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.