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Finding the Fourth Proportional to 21,797.94, 32,669.49 and 11,802.30

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Solution

The fourth proportional to 21,797.94, 32,669.49 and 11,802.30 is: 17,688.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,797.94 : 32,669.49 = 11,802.30 : x
  2. Step 2: Convert to fraction form
    21,797.94/32,669.49 = 11,802.30/x
  3. Step 3: Cross multiply
    21,797.94x = 32,669.49 × 11,802.30
  4. Step 4: Simplify right side
    21,797.94x = 385,575,121.83
  5. Step 5: Solve for x
    x = 385,575,121.83/21,797.94
  6. Step 6: Final answer
    x = 17,688.60

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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.