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Finding the Third Proportional to 35,291.53 and 77,580

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Solution

The third proportional to 35,291.53 and 77,580 is: 170,541.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,291.53 : 77,580 = 77,580 : x
  2. Step 2: Convert to fraction form
    35,291.53/77,580 = 77,580/x
  3. Step 3: Cross multiply
    35,291.53x = 77,580 × 77,580
  4. Step 4: Simplify right side
    35,291.53x = 6,018,656,400
  5. Step 5: Solve for x
    x = 6,018,656,400/35,291.53
  6. Step 6: Final answer
    x = 170,541.10

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Why These Related Problems?

These problems maintain the same ratio (2.20) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.