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Finding the Fourth Proportional to 15,872.01, 21,904.10 and 9,066.63

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Solution

The fourth proportional to 15,872.01, 21,904.10 and 9,066.63 is: 12,512.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,872.01 : 21,904.10 = 9,066.63 : x
  2. Step 2: Convert to fraction form
    15,872.01/21,904.10 = 9,066.63/x
  3. Step 3: Cross multiply
    15,872.01x = 21,904.10 × 9,066.63
  4. Step 4: Simplify right side
    15,872.01x = 198,596,324.85
  5. Step 5: Solve for x
    x = 198,596,324.85/15,872.01
  6. Step 6: Final answer
    x = 12,512.36

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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.