Home / 65,772.60-98,658.36-28,359.12

Finding the Fourth Proportional to 65,772.60, 98,658.36 and 28,359.12

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Solution

The fourth proportional to 65,772.60, 98,658.36 and 28,359.12 is: 42,538.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,772.60 : 98,658.36 = 28,359.12 : x
  2. Step 2: Convert to fraction form
    65,772.60/98,658.36 = 28,359.12/x
  3. Step 3: Cross multiply
    65,772.60x = 98,658.36 × 28,359.12
  4. Step 4: Simplify right side
    65,772.60x = 2,797,864,270.24
  5. Step 5: Solve for x
    x = 2,797,864,270.24/65,772.60
  6. Step 6: Final answer
    x = 42,538.45

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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.