Home / 66,386.18-99,573.81-21,998.42

Finding the Fourth Proportional to 66,386.18, 99,573.81 and 21,998.42

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Solution

The fourth proportional to 66,386.18, 99,573.81 and 21,998.42 is: 32,995.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,386.18 : 99,573.81 = 21,998.42 : x
  2. Step 2: Convert to fraction form
    66,386.18/99,573.81 = 21,998.42/x
  3. Step 3: Cross multiply
    66,386.18x = 99,573.81 × 21,998.42
  4. Step 4: Simplify right side
    66,386.18x = 2,190,466,493.38
  5. Step 5: Solve for x
    x = 2,190,466,493.38/66,386.18
  6. Step 6: Final answer
    x = 32,995.82

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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.