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Finding the Third Proportional to 55,428.25 and 84,526.25

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Solution

The third proportional to 55,428.25 and 84,526.25 is: 128,899.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,428.25 : 84,526.25 = 84,526.25 : x
  2. Step 2: Convert to fraction form
    55,428.25/84,526.25 = 84,526.25/x
  3. Step 3: Cross multiply
    55,428.25x = 84,526.25 × 84,526.25
  4. Step 4: Simplify right side
    55,428.25x = 7,144,686,939.06
  5. Step 5: Solve for x
    x = 7,144,686,939.06/55,428.25
  6. Step 6: Final answer
    x = 128,899.74

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.