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Finding the Fourth Proportional to 21,591.04, 29,807.04 and 16,556.08

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Solution

The fourth proportional to 21,591.04, 29,807.04 and 16,556.08 is: 22,856.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,591.04 : 29,807.04 = 16,556.08 : x
  2. Step 2: Convert to fraction form
    21,591.04/29,807.04 = 16,556.08/x
  3. Step 3: Cross multiply
    21,591.04x = 29,807.04 × 16,556.08
  4. Step 4: Simplify right side
    21,591.04x = 493,487,738.80
  5. Step 5: Solve for x
    x = 493,487,738.80/21,591.04
  6. Step 6: Final answer
    x = 22,856.14

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.