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Finding the Third Proportional to 66,518 and 97,829.50

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Solution

The third proportional to 66,518 and 97,829.50 is: 143,880.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,518 : 97,829.50 = 97,829.50 : x
  2. Step 2: Convert to fraction form
    66,518/97,829.50 = 97,829.50/x
  3. Step 3: Cross multiply
    66,518x = 97,829.50 × 97,829.50
  4. Step 4: Simplify right side
    66,518x = 9,570,611,070.25
  5. Step 5: Solve for x
    x = 9,570,611,070.25/66,518
  6. Step 6: Final answer
    x = 143,880.02

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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.