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Finding the Fourth Proportional to 71,792.19, 107,703.63 and 21,876.28

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Solution

The fourth proportional to 71,792.19, 107,703.63 and 21,876.28 is: 32,819.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,792.19 : 107,703.63 = 21,876.28 : x
  2. Step 2: Convert to fraction form
    71,792.19/107,703.63 = 21,876.28/x
  3. Step 3: Cross multiply
    71,792.19x = 107,703.63 × 21,876.28
  4. Step 4: Simplify right side
    71,792.19x = 2,356,154,497.64
  5. Step 5: Solve for x
    x = 2,356,154,497.64/71,792.19
  6. Step 6: Final answer
    x = 32,819.09

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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.