Home / 66,186.90-99,284.13-18,798.30

Finding the Fourth Proportional to 66,186.90, 99,284.13 and 18,798.30

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Solution

The fourth proportional to 66,186.90, 99,284.13 and 18,798.30 is: 28,198.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,186.90 : 99,284.13 = 18,798.30 : x
  2. Step 2: Convert to fraction form
    66,186.90/99,284.13 = 18,798.30/x
  3. Step 3: Cross multiply
    66,186.90x = 99,284.13 × 18,798.30
  4. Step 4: Simplify right side
    66,186.90x = 1,866,372,860.98
  5. Step 5: Solve for x
    x = 1,866,372,860.98/66,186.90
  6. Step 6: Final answer
    x = 28,198.52

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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.