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Finding the Fourth Proportional to 66,641.46, 99,947.43 and 19,246.23

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Solution

The fourth proportional to 66,641.46, 99,947.43 and 19,246.23 is: 28,865.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,641.46 : 99,947.43 = 19,246.23 : x
  2. Step 2: Convert to fraction form
    66,641.46/99,947.43 = 19,246.23/x
  3. Step 3: Cross multiply
    66,641.46x = 99,947.43 × 19,246.23
  4. Step 4: Simplify right side
    66,641.46x = 1,923,611,225.69
  5. Step 5: Solve for x
    x = 1,923,611,225.69/66,641.46
  6. Step 6: Final answer
    x = 28,865.08

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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.