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Finding the Third Proportional to 58,428 and 127,912.50

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Solution

The third proportional to 58,428 and 127,912.50 is: 280,030.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,428 : 127,912.50 = 127,912.50 : x
  2. Step 2: Convert to fraction form
    58,428/127,912.50 = 127,912.50/x
  3. Step 3: Cross multiply
    58,428x = 127,912.50 × 127,912.50
  4. Step 4: Simplify right side
    58,428x = 16,361,607,656.25
  5. Step 5: Solve for x
    x = 16,361,607,656.25/58,428
  6. Step 6: Final answer
    x = 280,030.25

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Why These Related Problems?

These problems maintain the same ratio (2.19) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.