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Finding the Fourth Proportional to 67,018.32, 99,792.90 and 64,623.54

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Solution

The fourth proportional to 67,018.32, 99,792.90 and 64,623.54 is: 96,226.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,018.32 : 99,792.90 = 64,623.54 : x
  2. Step 2: Convert to fraction form
    67,018.32/99,792.90 = 64,623.54/x
  3. Step 3: Cross multiply
    67,018.32x = 99,792.90 × 64,623.54
  4. Step 4: Simplify right side
    67,018.32x = 6,448,970,464.87
  5. Step 5: Solve for x
    x = 6,448,970,464.87/67,018.32
  6. Step 6: Final answer
    x = 96,226.98

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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.