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Finding the Fourth Proportional to 66,797.36, 99,606.61 and 66,197.45

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Solution

The fourth proportional to 66,797.36, 99,606.61 and 66,197.45 is: 98,712.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,797.36 : 99,606.61 = 66,197.45 : x
  2. Step 2: Convert to fraction form
    66,797.36/99,606.61 = 66,197.45/x
  3. Step 3: Cross multiply
    66,797.36x = 99,606.61 × 66,197.45
  4. Step 4: Simplify right side
    66,797.36x = 6,593,703,916.91
  5. Step 5: Solve for x
    x = 6,593,703,916.91/66,797.36
  6. Step 6: Final answer
    x = 98,712.05

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.