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Finding the Third Proportional to 784.50 and 1,437

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Solution

The third proportional to 784.50 and 1,437 is: 2,632.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    784.50 : 1,437 = 1,437 : x
  2. Step 2: Convert to fraction form
    784.50/1,437 = 1,437/x
  3. Step 3: Cross multiply
    784.50x = 1,437 × 1,437
  4. Step 4: Simplify right side
    784.50x = 2,064,969
  5. Step 5: Solve for x
    x = 2,064,969/784.50
  6. Step 6: Final answer
    x = 2,632.21

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Why These Related Problems?

These problems maintain the same ratio (1.83) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.