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Finding the Fourth Proportional to 65,777.37, 98,666.97 and 21,404.37

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Solution

The fourth proportional to 65,777.37, 98,666.97 and 21,404.37 is: 32,106.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    65,777.37 : 98,666.97 = 21,404.37 : x
  2. Step 2: Convert to fraction form
    65,777.37/98,666.97 = 21,404.37/x
  3. Step 3: Cross multiply
    65,777.37x = 98,666.97 × 21,404.37
  4. Step 4: Simplify right side
    65,777.37x = 2,111,904,332.66
  5. Step 5: Solve for x
    x = 2,111,904,332.66/65,777.37
  6. Step 6: Final answer
    x = 32,106.85

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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.