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Finding the Third Proportional to 51,903.50 and 77,585

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Solution

The third proportional to 51,903.50 and 77,585 is: 115,973.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,903.50 : 77,585 = 77,585 : x
  2. Step 2: Convert to fraction form
    51,903.50/77,585 = 77,585/x
  3. Step 3: Cross multiply
    51,903.50x = 77,585 × 77,585
  4. Step 4: Simplify right side
    51,903.50x = 6,019,432,225
  5. Step 5: Solve for x
    x = 6,019,432,225/51,903.50
  6. Step 6: Final answer
    x = 115,973.53

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Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.