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Finding the Fourth Proportional to 8,859.61, 13,289.73 and 4,693.99

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Solution

The fourth proportional to 8,859.61, 13,289.73 and 4,693.99 is: 7,041.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,859.61 : 13,289.73 = 4,693.99 : x
  2. Step 2: Convert to fraction form
    8,859.61/13,289.73 = 4,693.99/x
  3. Step 3: Cross multiply
    8,859.61x = 13,289.73 × 4,693.99
  4. Step 4: Simplify right side
    8,859.61x = 62,381,859.72
  5. Step 5: Solve for x
    x = 62,381,859.72/8,859.61
  6. Step 6: Final answer
    x = 7,041.15

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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.