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Finding the Fourth Proportional to 66,223.87, 99,335.78 and 19,476.75

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Solution

The fourth proportional to 66,223.87, 99,335.78 and 19,476.75 is: 29,215.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,223.87 : 99,335.78 = 19,476.75 : x
  2. Step 2: Convert to fraction form
    66,223.87/99,335.78 = 19,476.75/x
  3. Step 3: Cross multiply
    66,223.87x = 99,335.78 × 19,476.75
  4. Step 4: Simplify right side
    66,223.87x = 1,934,737,856.08
  5. Step 5: Solve for x
    x = 1,934,737,856.08/66,223.87
  6. Step 6: Final answer
    x = 29,215.11

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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.