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Finding the Third Proportional to 2,445 and 3,913.50

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Solution

The third proportional to 2,445 and 3,913.50 is: 6,264.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    2,445 : 3,913.50 = 3,913.50 : x
  2. Step 2: Convert to fraction form
    2,445/3,913.50 = 3,913.50/x
  3. Step 3: Cross multiply
    2,445x = 3,913.50 × 3,913.50
  4. Step 4: Simplify right side
    2,445x = 15,315,482.25
  5. Step 5: Solve for x
    x = 15,315,482.25/2,445
  6. Step 6: Final answer
    x = 6,264.00

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Why These Related Problems?

These problems maintain the same ratio (1.60) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.