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Finding the Fourth Proportional to 67,014.16, 100,497.72 and 19,616.16

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Solution

The fourth proportional to 67,014.16, 100,497.72 and 19,616.16 is: 29,417.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,014.16 : 100,497.72 = 19,616.16 : x
  2. Step 2: Convert to fraction form
    67,014.16/100,497.72 = 19,616.16/x
  3. Step 3: Cross multiply
    67,014.16x = 100,497.72 × 19,616.16
  4. Step 4: Simplify right side
    67,014.16x = 1,971,379,355.16
  5. Step 5: Solve for x
    x = 1,971,379,355.16/67,014.16
  6. Step 6: Final answer
    x = 29,417.36

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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.