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Finding the Fourth Proportional to 64,831.62, 89,474.79 and 37,613.70

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Solution

The fourth proportional to 64,831.62, 89,474.79 and 37,613.70 is: 51,911.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,831.62 : 89,474.79 = 37,613.70 : x
  2. Step 2: Convert to fraction form
    64,831.62/89,474.79 = 37,613.70/x
  3. Step 3: Cross multiply
    64,831.62x = 89,474.79 × 37,613.70
  4. Step 4: Simplify right side
    64,831.62x = 3,365,477,908.62
  5. Step 5: Solve for x
    x = 3,365,477,908.62/64,831.62
  6. Step 6: Final answer
    x = 51,911.06

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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.