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Finding the Fourth Proportional to 35,521.80, 53,412.30 and 29,819.40

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Solution

The fourth proportional to 35,521.80, 53,412.30 and 29,819.40 is: 44,837.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,521.80 : 53,412.30 = 29,819.40 : x
  2. Step 2: Convert to fraction form
    35,521.80/53,412.30 = 29,819.40/x
  3. Step 3: Cross multiply
    35,521.80x = 53,412.30 × 29,819.40
  4. Step 4: Simplify right side
    35,521.80x = 1,592,722,738.62
  5. Step 5: Solve for x
    x = 1,592,722,738.62/35,521.80
  6. Step 6: Final answer
    x = 44,837.90

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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.