Home / 66,391.34-99,586.64-38,293.18

Finding the Fourth Proportional to 66,391.34, 99,586.64 and 38,293.18

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Solution

The fourth proportional to 66,391.34, 99,586.64 and 38,293.18 is: 57,439.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,391.34 : 99,586.64 = 38,293.18 : x
  2. Step 2: Convert to fraction form
    66,391.34/99,586.64 = 38,293.18/x
  3. Step 3: Cross multiply
    66,391.34x = 99,586.64 × 38,293.18
  4. Step 4: Simplify right side
    66,391.34x = 3,813,488,977.88
  5. Step 5: Solve for x
    x = 3,813,488,977.88/66,391.34
  6. Step 6: Final answer
    x = 57,439.56

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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.