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Finding the Third Proportional to 59,428.75 and 130,521.25

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Solution

The third proportional to 59,428.75 and 130,521.25 is: 286,659.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,428.75 : 130,521.25 = 130,521.25 : x
  2. Step 2: Convert to fraction form
    59,428.75/130,521.25 = 130,521.25/x
  3. Step 3: Cross multiply
    59,428.75x = 130,521.25 × 130,521.25
  4. Step 4: Simplify right side
    59,428.75x = 17,035,796,701.56
  5. Step 5: Solve for x
    x = 17,035,796,701.56/59,428.75
  6. Step 6: Final answer
    x = 286,659.18

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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.