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Finding the Fourth Proportional to 66,353.73, 99,547.46 and 19,606.61

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Solution

The fourth proportional to 66,353.73, 99,547.46 and 19,606.61 is: 29,414.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,353.73 : 99,547.46 = 19,606.61 : x
  2. Step 2: Convert to fraction form
    66,353.73/99,547.46 = 19,606.61/x
  3. Step 3: Cross multiply
    66,353.73x = 99,547.46 × 19,606.61
  4. Step 4: Simplify right side
    66,353.73x = 1,951,787,628.94
  5. Step 5: Solve for x
    x = 1,951,787,628.94/66,353.73
  6. Step 6: Final answer
    x = 29,414.89

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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.