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Finding the Third Proportional to 5,507 and 7,888

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Solution

The third proportional to 5,507 and 7,888 is: 11,298.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,507 : 7,888 = 7,888 : x
  2. Step 2: Convert to fraction form
    5,507/7,888 = 7,888/x
  3. Step 3: Cross multiply
    5,507x = 7,888 × 7,888
  4. Step 4: Simplify right side
    5,507x = 62,220,544
  5. Step 5: Solve for x
    x = 62,220,544/5,507
  6. Step 6: Final answer
    x = 11,298.45

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Why These Related Problems?

These problems maintain the same ratio (1.43) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.