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Finding the Third Proportional to 58,390 and 85,260

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Solution

The third proportional to 58,390 and 85,260 is: 124,495.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,390 : 85,260 = 85,260 : x
  2. Step 2: Convert to fraction form
    58,390/85,260 = 85,260/x
  3. Step 3: Cross multiply
    58,390x = 85,260 × 85,260
  4. Step 4: Simplify right side
    58,390x = 7,269,267,600
  5. Step 5: Solve for x
    x = 7,269,267,600/58,390
  6. Step 6: Final answer
    x = 124,495.08

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Why These Related Problems?

These problems maintain the same ratio (1.46) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.