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Finding the Fourth Proportional to 54,353.99, 75,008.49 and 30,480.59

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Solution

The fourth proportional to 54,353.99, 75,008.49 and 30,480.59 is: 42,063.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    54,353.99 : 75,008.49 = 30,480.59 : x
  2. Step 2: Convert to fraction form
    54,353.99/75,008.49 = 30,480.59/x
  3. Step 3: Cross multiply
    54,353.99x = 75,008.49 × 30,480.59
  4. Step 4: Simplify right side
    54,353.99x = 2,286,303,030.21
  5. Step 5: Solve for x
    x = 2,286,303,030.21/54,353.99
  6. Step 6: Final answer
    x = 42,063.21

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.