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Finding the Fourth Proportional to 35,819.80, 53,730.15 and 10,860.10

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Solution

The fourth proportional to 35,819.80, 53,730.15 and 10,860.10 is: 16,290.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,819.80 : 53,730.15 = 10,860.10 : x
  2. Step 2: Convert to fraction form
    35,819.80/53,730.15 = 10,860.10/x
  3. Step 3: Cross multiply
    35,819.80x = 53,730.15 × 10,860.10
  4. Step 4: Simplify right side
    35,819.80x = 583,514,802.02
  5. Step 5: Solve for x
    x = 583,514,802.02/35,819.80
  6. Step 6: Final answer
    x = 16,290.29

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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.