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Finding the Fourth Proportional to 8,904.32, 13,363.20 and 5,004.80

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Solution

The fourth proportional to 8,904.32, 13,363.20 and 5,004.80 is: 7,510.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,904.32 : 13,363.20 = 5,004.80 : x
  2. Step 2: Convert to fraction form
    8,904.32/13,363.20 = 5,004.80/x
  3. Step 3: Cross multiply
    8,904.32x = 13,363.20 × 5,004.80
  4. Step 4: Simplify right side
    8,904.32x = 66,880,143.36
  5. Step 5: Solve for x
    x = 66,880,143.36/8,904.32
  6. Step 6: Final answer
    x = 7,510.98

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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.