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Finding the Fourth Proportional to 64,792.62, 89,416.80 and 36,114.16

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Solution

The fourth proportional to 64,792.62, 89,416.80 and 36,114.16 is: 49,839.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,792.62 : 89,416.80 = 36,114.16 : x
  2. Step 2: Convert to fraction form
    64,792.62/89,416.80 = 36,114.16/x
  3. Step 3: Cross multiply
    64,792.62x = 89,416.80 × 36,114.16
  4. Step 4: Simplify right side
    64,792.62x = 3,229,212,621.89
  5. Step 5: Solve for x
    x = 3,229,212,621.89/64,792.62
  6. Step 6: Final answer
    x = 49,839.20

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.