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Finding the Fourth Proportional to 8,898.92, 13,343.76 and 5,208.36

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Solution

The fourth proportional to 8,898.92, 13,343.76 and 5,208.36 is: 7,809.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,898.92 : 13,343.76 = 5,208.36 : x
  2. Step 2: Convert to fraction form
    8,898.92/13,343.76 = 5,208.36/x
  3. Step 3: Cross multiply
    8,898.92x = 13,343.76 × 5,208.36
  4. Step 4: Simplify right side
    8,898.92x = 69,499,105.83
  5. Step 5: Solve for x
    x = 69,499,105.83/8,898.92
  6. Step 6: Final answer
    x = 7,809.84

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1.5x scale

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.