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Finding the Fourth Proportional to 35,518.58, 53,286.80 and 10,218.14

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Solution

The fourth proportional to 35,518.58, 53,286.80 and 10,218.14 is: 15,329.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,518.58 : 53,286.80 = 10,218.14 : x
  2. Step 2: Convert to fraction form
    35,518.58/53,286.80 = 10,218.14/x
  3. Step 3: Cross multiply
    35,518.58x = 53,286.80 × 10,218.14
  4. Step 4: Simplify right side
    35,518.58x = 544,491,665.03
  5. Step 5: Solve for x
    x = 544,491,665.03/35,518.58
  6. Step 6: Final answer
    x = 15,329.77

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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.