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Finding the Fourth Proportional to 66,598.01, 99,917.06 and 19,850.88

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Solution

The fourth proportional to 66,598.01, 99,917.06 and 19,850.88 is: 29,782.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,598.01 : 99,917.06 = 19,850.88 : x
  2. Step 2: Convert to fraction form
    66,598.01/99,917.06 = 19,850.88/x
  3. Step 3: Cross multiply
    66,598.01x = 99,917.06 × 19,850.88
  4. Step 4: Simplify right side
    66,598.01x = 1,983,441,568.01
  5. Step 5: Solve for x
    x = 1,983,441,568.01/66,598.01
  6. Step 6: Final answer
    x = 29,782.29

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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.