Home / 66,218.24-99,329.16-19,472.60

Finding the Fourth Proportional to 66,218.24, 99,329.16 and 19,472.60

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Solution

The fourth proportional to 66,218.24, 99,329.16 and 19,472.60 is: 29,209.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,218.24 : 99,329.16 = 19,472.60 : x
  2. Step 2: Convert to fraction form
    66,218.24/99,329.16 = 19,472.60/x
  3. Step 3: Cross multiply
    66,218.24x = 99,329.16 × 19,472.60
  4. Step 4: Simplify right side
    66,218.24x = 1,934,197,001.02
  5. Step 5: Solve for x
    x = 1,934,197,001.02/66,218.24
  6. Step 6: Final answer
    x = 29,209.43

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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.