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Finding the Fourth Proportional to 66,965.36, 99,967.66 and 62,299.76

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Solution

The fourth proportional to 66,965.36, 99,967.66 and 62,299.76 is: 93,002.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,965.36 : 99,967.66 = 62,299.76 : x
  2. Step 2: Convert to fraction form
    66,965.36/99,967.66 = 62,299.76/x
  3. Step 3: Cross multiply
    66,965.36x = 99,967.66 × 62,299.76
  4. Step 4: Simplify right side
    66,965.36x = 6,227,961,225.76
  5. Step 5: Solve for x
    x = 6,227,961,225.76/66,965.36
  6. Step 6: Final answer
    x = 93,002.73

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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.