Home / 66,587.07-99,857.22-19,189.49

Finding the Fourth Proportional to 66,587.07, 99,857.22 and 19,189.49

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Solution

The fourth proportional to 66,587.07, 99,857.22 and 19,189.49 is: 28,777.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,587.07 : 99,857.22 = 19,189.49 : x
  2. Step 2: Convert to fraction form
    66,587.07/99,857.22 = 19,189.49/x
  3. Step 3: Cross multiply
    66,587.07x = 99,857.22 × 19,189.49
  4. Step 4: Simplify right side
    66,587.07x = 1,916,208,625.33
  5. Step 5: Solve for x
    x = 1,916,208,625.33/66,587.07
  6. Step 6: Final answer
    x = 28,777.49

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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.