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Finding the Fourth Proportional to 8,958.62, 13,509.60 and 8,835.50

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Solution

The fourth proportional to 8,958.62, 13,509.60 and 8,835.50 is: 13,323.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,958.62 : 13,509.60 = 8,835.50 : x
  2. Step 2: Convert to fraction form
    8,958.62/13,509.60 = 8,835.50/x
  3. Step 3: Cross multiply
    8,958.62x = 13,509.60 × 8,835.50
  4. Step 4: Simplify right side
    8,958.62x = 119,364,070.80
  5. Step 5: Solve for x
    x = 119,364,070.80/8,958.62
  6. Step 6: Final answer
    x = 13,323.94

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.