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Finding the Fourth Proportional to 9,133.92, 13,701.56 and 2,894.42

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Solution

The fourth proportional to 9,133.92, 13,701.56 and 2,894.42 is: 4,341.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,133.92 : 13,701.56 = 2,894.42 : x
  2. Step 2: Convert to fraction form
    9,133.92/13,701.56 = 2,894.42/x
  3. Step 3: Cross multiply
    9,133.92x = 13,701.56 × 2,894.42
  4. Step 4: Simplify right side
    9,133.92x = 39,658,069.30
  5. Step 5: Solve for x
    x = 39,658,069.30/9,133.92
  6. Step 6: Final answer
    x = 4,341.85

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.