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Finding the Fourth Proportional to 66,960.36, 99,960.21 and 62,294.76

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Solution

The fourth proportional to 66,960.36, 99,960.21 and 62,294.76 is: 92,995.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,960.36 : 99,960.21 = 62,294.76 : x
  2. Step 2: Convert to fraction form
    66,960.36/99,960.21 = 62,294.76/x
  3. Step 3: Cross multiply
    66,960.36x = 99,960.21 × 62,294.76
  4. Step 4: Simplify right side
    66,960.36x = 6,226,997,291.50
  5. Step 5: Solve for x
    x = 6,226,997,291.50/66,960.36
  6. Step 6: Final answer
    x = 92,995.28

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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.