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Finding the Fourth Proportional to 66,323.17, 91,608.16 and 48,144.88

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Solution

The fourth proportional to 66,323.17, 91,608.16 and 48,144.88 is: 66,499.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,323.17 : 91,608.16 = 48,144.88 : x
  2. Step 2: Convert to fraction form
    66,323.17/91,608.16 = 48,144.88/x
  3. Step 3: Cross multiply
    66,323.17x = 91,608.16 × 48,144.88
  4. Step 4: Simplify right side
    66,323.17x = 4,410,463,870.22
  5. Step 5: Solve for x
    x = 4,410,463,870.22/66,323.17
  6. Step 6: Final answer
    x = 66,499.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.