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Finding the Fourth Proportional to 39,464.40, 59,204.88 and 11,384.40

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Solution

The fourth proportional to 39,464.40, 59,204.88 and 11,384.40 is: 17,078.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,464.40 : 59,204.88 = 11,384.40 : x
  2. Step 2: Convert to fraction form
    39,464.40/59,204.88 = 11,384.40/x
  3. Step 3: Cross multiply
    39,464.40x = 59,204.88 × 11,384.40
  4. Step 4: Simplify right side
    39,464.40x = 674,012,035.87
  5. Step 5: Solve for x
    x = 674,012,035.87/39,464.40
  6. Step 6: Final answer
    x = 17,078.99

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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.