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Finding the Fourth Proportional to 16,203.20, 21,564.08 and 16,203.20

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Solution

The fourth proportional to 16,203.20, 21,564.08 and 16,203.20 is: 21,564.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,203.20 : 21,564.08 = 16,203.20 : x
  2. Step 2: Convert to fraction form
    16,203.20/21,564.08 = 16,203.20/x
  3. Step 3: Cross multiply
    16,203.20x = 21,564.08 × 16,203.20
  4. Step 4: Simplify right side
    16,203.20x = 349,407,101.06
  5. Step 5: Solve for x
    x = 349,407,101.06/16,203.20
  6. Step 6: Final answer
    x = 21,564.08

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.33) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.