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Finding the Fourth Proportional to 35,636.99, 53,439.68 and 18,993.92

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Solution

The fourth proportional to 35,636.99, 53,439.68 and 18,993.92 is: 28,482.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,636.99 : 53,439.68 = 18,993.92 : x
  2. Step 2: Convert to fraction form
    35,636.99/53,439.68 = 18,993.92/x
  3. Step 3: Cross multiply
    35,636.99x = 53,439.68 × 18,993.92
  4. Step 4: Simplify right side
    35,636.99x = 1,015,028,787.03
  5. Step 5: Solve for x
    x = 1,015,028,787.03/35,636.99
  6. Step 6: Final answer
    x = 28,482.45

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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.