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Finding the Fourth Proportional to 9,320.59, 13,978.12 and 4,935.66

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Solution

The fourth proportional to 9,320.59, 13,978.12 and 4,935.66 is: 7,402.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,320.59 : 13,978.12 = 4,935.66 : x
  2. Step 2: Convert to fraction form
    9,320.59/13,978.12 = 4,935.66/x
  3. Step 3: Cross multiply
    9,320.59x = 13,978.12 × 4,935.66
  4. Step 4: Simplify right side
    9,320.59x = 68,991,247.76
  5. Step 5: Solve for x
    x = 68,991,247.76/9,320.59
  6. Step 6: Final answer
    x = 7,402.03

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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.