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Finding the Fourth Proportional to 66,017.92, 98,940.48 and 57,216.64

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Solution

The fourth proportional to 66,017.92, 98,940.48 and 57,216.64 is: 85,750.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,017.92 : 98,940.48 = 57,216.64 : x
  2. Step 2: Convert to fraction form
    66,017.92/98,940.48 = 57,216.64/x
  3. Step 3: Cross multiply
    66,017.92x = 98,940.48 × 57,216.64
  4. Step 4: Simplify right side
    66,017.92x = 5,661,041,825.59
  5. Step 5: Solve for x
    x = 5,661,041,825.59/66,017.92
  6. Step 6: Final answer
    x = 85,750.08

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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.