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Finding the Third Proportional to 66,911.50 and 97,854

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Solution

The third proportional to 66,911.50 and 97,854 is: 143,105.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,911.50 : 97,854 = 97,854 : x
  2. Step 2: Convert to fraction form
    66,911.50/97,854 = 97,854/x
  3. Step 3: Cross multiply
    66,911.50x = 97,854 × 97,854
  4. Step 4: Simplify right side
    66,911.50x = 9,575,405,316
  5. Step 5: Solve for x
    x = 9,575,405,316/66,911.50
  6. Step 6: Final answer
    x = 143,105.52

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.