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Finding the Fourth Proportional to 56,518.20, 84,819.42 and 21,526.20

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Solution

The fourth proportional to 56,518.20, 84,819.42 and 21,526.20 is: 32,305.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,518.20 : 84,819.42 = 21,526.20 : x
  2. Step 2: Convert to fraction form
    56,518.20/84,819.42 = 21,526.20/x
  3. Step 3: Cross multiply
    56,518.20x = 84,819.42 × 21,526.20
  4. Step 4: Simplify right side
    56,518.20x = 1,825,839,798.80
  5. Step 5: Solve for x
    x = 1,825,839,798.80/56,518.20
  6. Step 6: Final answer
    x = 32,305.34

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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.