Home / 71,666.15-107,499.28-18,358.33

Finding the Fourth Proportional to 71,666.15, 107,499.28 and 18,358.33

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Solution

The fourth proportional to 71,666.15, 107,499.28 and 18,358.33 is: 27,537.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,666.15 : 107,499.28 = 18,358.33 : x
  2. Step 2: Convert to fraction form
    71,666.15/107,499.28 = 18,358.33/x
  3. Step 3: Cross multiply
    71,666.15x = 107,499.28 × 18,358.33
  4. Step 4: Simplify right side
    71,666.15x = 1,973,507,257.00
  5. Step 5: Solve for x
    x = 1,973,507,257.00/71,666.15
  6. Step 6: Final answer
    x = 27,537.51

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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.