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Finding the Third Proportional to 3,355.88 and 4,931.07

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Solution

The third proportional to 3,355.88 and 4,931.07 is: 7,245.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,355.88 : 4,931.07 = 4,931.07 : x
  2. Step 2: Convert to fraction form
    3,355.88/4,931.07 = 4,931.07/x
  3. Step 3: Cross multiply
    3,355.88x = 4,931.07 × 4,931.07
  4. Step 4: Simplify right side
    3,355.88x = 24,315,492.95
  5. Step 5: Solve for x
    x = 24,315,492.95/3,355.88
  6. Step 6: Final answer
    x = 7,245.65

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Why These Related Problems?

These problems maintain the same ratio (1.47) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.