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Finding the Fourth Proportional to 55,338.99, 83,025.99 and 19,799.53

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Solution

The fourth proportional to 55,338.99, 83,025.99 and 19,799.53 is: 29,705.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,338.99 : 83,025.99 = 19,799.53 : x
  2. Step 2: Convert to fraction form
    55,338.99/83,025.99 = 19,799.53/x
  3. Step 3: Cross multiply
    55,338.99x = 83,025.99 × 19,799.53
  4. Step 4: Simplify right side
    55,338.99x = 1,643,875,372.22
  5. Step 5: Solve for x
    x = 1,643,875,372.22/55,338.99
  6. Step 6: Final answer
    x = 29,705.56

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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.