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Finding the Fourth Proportional to 8,922.99, 13,384.59 and 4,243.45

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Solution

The fourth proportional to 8,922.99, 13,384.59 and 4,243.45 is: 6,365.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,922.99 : 13,384.59 = 4,243.45 : x
  2. Step 2: Convert to fraction form
    8,922.99/13,384.59 = 4,243.45/x
  3. Step 3: Cross multiply
    8,922.99x = 13,384.59 × 4,243.45
  4. Step 4: Simplify right side
    8,922.99x = 56,796,789.06
  5. Step 5: Solve for x
    x = 56,796,789.06/8,922.99
  6. Step 6: Final answer
    x = 6,365.22

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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.