Home / 65,685.62-98,542.27-21,308.91

Finding the Fourth Proportional to 65,685.62, 98,542.27 and 21,308.91

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Solution

The fourth proportional to 65,685.62, 98,542.27 and 21,308.91 is: 31,967.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,685.62 : 98,542.27 = 21,308.91 : x
  2. Step 2: Convert to fraction form
    65,685.62/98,542.27 = 21,308.91/x
  3. Step 3: Cross multiply
    65,685.62x = 98,542.27 × 21,308.91
  4. Step 4: Simplify right side
    65,685.62x = 2,099,828,362.63
  5. Step 5: Solve for x
    x = 2,099,828,362.63/65,685.62
  6. Step 6: Final answer
    x = 31,967.85

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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.