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Finding the Third Proportional to 66,706.50 and 97,831.50

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Solution

The third proportional to 66,706.50 and 97,831.50 is: 143,479.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,706.50 : 97,831.50 = 97,831.50 : x
  2. Step 2: Convert to fraction form
    66,706.50/97,831.50 = 97,831.50/x
  3. Step 3: Cross multiply
    66,706.50x = 97,831.50 × 97,831.50
  4. Step 4: Simplify right side
    66,706.50x = 9,571,002,392.25
  5. Step 5: Solve for x
    x = 9,571,002,392.25/66,706.50
  6. Step 6: Final answer
    x = 143,479.31

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.