Home / 53,008.05-79,515.95-19,728.11

Finding the Fourth Proportional to 53,008.05, 79,515.95 and 19,728.11

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Solution

The fourth proportional to 53,008.05, 79,515.95 and 19,728.11 is: 29,593.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,008.05 : 79,515.95 = 19,728.11 : x
  2. Step 2: Convert to fraction form
    53,008.05/79,515.95 = 19,728.11/x
  3. Step 3: Cross multiply
    53,008.05x = 79,515.95 × 19,728.11
  4. Step 4: Simplify right side
    53,008.05x = 1,568,698,912.13
  5. Step 5: Solve for x
    x = 1,568,698,912.13/53,008.05
  6. Step 6: Final answer
    x = 29,593.60

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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.