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Finding the Third Proportional to 66,348 and 99,886.50

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Solution

The third proportional to 66,348 and 99,886.50 is: 150,378.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,348 : 99,886.50 = 99,886.50 : x
  2. Step 2: Convert to fraction form
    66,348/99,886.50 = 99,886.50/x
  3. Step 3: Cross multiply
    66,348x = 99,886.50 × 99,886.50
  4. Step 4: Simplify right side
    66,348x = 9,977,312,882.25
  5. Step 5: Solve for x
    x = 9,977,312,882.25/66,348
  6. Step 6: Final answer
    x = 150,378.50

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.