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Finding the Third Proportional to 1,020 and 1,537

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Solution

The third proportional to 1,020 and 1,537 is: 2,316.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,020 : 1,537 = 1,537 : x
  2. Step 2: Convert to fraction form
    1,020/1,537 = 1,537/x
  3. Step 3: Cross multiply
    1,020x = 1,537 × 1,537
  4. Step 4: Simplify right side
    1,020x = 2,362,369
  5. Step 5: Solve for x
    x = 2,362,369/1,020
  6. Step 6: Final answer
    x = 2,316.05

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Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.