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Finding the Fourth Proportional to 19,701.92, 27,191.04 and 14,394.08

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Solution

The fourth proportional to 19,701.92, 27,191.04 and 14,394.08 is: 19,865.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,701.92 : 27,191.04 = 14,394.08 : x
  2. Step 2: Convert to fraction form
    19,701.92/27,191.04 = 14,394.08/x
  3. Step 3: Cross multiply
    19,701.92x = 27,191.04 × 14,394.08
  4. Step 4: Simplify right side
    19,701.92x = 391,390,005.04
  5. Step 5: Solve for x
    x = 391,390,005.04/19,701.92
  6. Step 6: Final answer
    x = 19,865.58

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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.