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Finding the Fourth Proportional to 19,793.84, 27,316.31 and 10,842.12

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Solution

The fourth proportional to 19,793.84, 27,316.31 and 10,842.12 is: 14,962.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,793.84 : 27,316.31 = 10,842.12 : x
  2. Step 2: Convert to fraction form
    19,793.84/27,316.31 = 10,842.12/x
  3. Step 3: Cross multiply
    19,793.84x = 27,316.31 × 10,842.12
  4. Step 4: Simplify right side
    19,793.84x = 296,166,656.77
  5. Step 5: Solve for x
    x = 296,166,656.77/19,793.84
  6. Step 6: Final answer
    x = 14,962.57

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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.