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Finding the Fourth Proportional to 66,322.92, 91,607.82 and 48,144.63

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Solution

The fourth proportional to 66,322.92, 91,607.82 and 48,144.63 is: 66,499.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,322.92 : 91,607.82 = 48,144.63 : x
  2. Step 2: Convert to fraction form
    66,322.92/91,607.82 = 48,144.63/x
  3. Step 3: Cross multiply
    66,322.92x = 91,607.82 × 48,144.63
  4. Step 4: Simplify right side
    66,322.92x = 4,410,424,599.01
  5. Step 5: Solve for x
    x = 4,410,424,599.01/66,322.92
  6. Step 6: Final answer
    x = 66,499.25

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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.