Home / 66,439.09-99,649.23-19,058.23

Finding the Fourth Proportional to 66,439.09, 99,649.23 and 19,058.23

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Solution

The fourth proportional to 66,439.09, 99,649.23 and 19,058.23 is: 28,584.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,439.09 : 99,649.23 = 19,058.23 : x
  2. Step 2: Convert to fraction form
    66,439.09/99,649.23 = 19,058.23/x
  3. Step 3: Cross multiply
    66,439.09x = 99,649.23 × 19,058.23
  4. Step 4: Simplify right side
    66,439.09x = 1,899,137,944.66
  5. Step 5: Solve for x
    x = 1,899,137,944.66/66,439.09
  6. Step 6: Final answer
    x = 28,584.65

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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.