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Finding the Fourth Proportional to 66,448.02, 99,672.03 and 45,608.34

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Solution

The fourth proportional to 66,448.02, 99,672.03 and 45,608.34 is: 68,412.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,448.02 : 99,672.03 = 45,608.34 : x
  2. Step 2: Convert to fraction form
    66,448.02/99,672.03 = 45,608.34/x
  3. Step 3: Cross multiply
    66,448.02x = 99,672.03 × 45,608.34
  4. Step 4: Simplify right side
    66,448.02x = 4,545,875,832.73
  5. Step 5: Solve for x
    x = 4,545,875,832.73/66,448.02
  6. Step 6: Final answer
    x = 68,412.51

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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.