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Finding the Fourth Proportional to 39,597.52, 59,390.08 and 12,943.30

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Solution

The fourth proportional to 39,597.52, 59,390.08 and 12,943.30 is: 19,412.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,597.52 : 59,390.08 = 12,943.30 : x
  2. Step 2: Convert to fraction form
    39,597.52/59,390.08 = 12,943.30/x
  3. Step 3: Cross multiply
    39,597.52x = 59,390.08 × 12,943.30
  4. Step 4: Simplify right side
    39,597.52x = 768,703,557.75
  5. Step 5: Solve for x
    x = 768,703,557.75/39,597.52
  6. Step 6: Final answer
    x = 19,412.92

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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.