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Finding the Fourth Proportional to 39,984.64, 59,900.64 and 22,401.28

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Solution

The fourth proportional to 39,984.64, 59,900.64 and 22,401.28 is: 33,559.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,984.64 : 59,900.64 = 22,401.28 : x
  2. Step 2: Convert to fraction form
    39,984.64/59,900.64 = 22,401.28/x
  3. Step 3: Cross multiply
    39,984.64x = 59,900.64 × 22,401.28
  4. Step 4: Simplify right side
    39,984.64x = 1,341,851,008.82
  5. Step 5: Solve for x
    x = 1,341,851,008.82/39,984.64
  6. Step 6: Final answer
    x = 33,559.16

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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.