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Finding the Fourth Proportional to 19,700.01, 27,181.95 and 11,522.05

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Solution

The fourth proportional to 19,700.01, 27,181.95 and 11,522.05 is: 15,898.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,700.01 : 27,181.95 = 11,522.05 : x
  2. Step 2: Convert to fraction form
    19,700.01/27,181.95 = 11,522.05/x
  3. Step 3: Cross multiply
    19,700.01x = 27,181.95 × 11,522.05
  4. Step 4: Simplify right side
    19,700.01x = 313,191,675.83
  5. Step 5: Solve for x
    x = 313,191,675.83/19,700.01
  6. Step 6: Final answer
    x = 15,898.05

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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.