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Finding the Third Proportional to 1,490 and 2,527

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Solution

The third proportional to 1,490 and 2,527 is: 4,285.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    1,490 : 2,527 = 2,527 : x
  2. Step 2: Convert to fraction form
    1,490/2,527 = 2,527/x
  3. Step 3: Cross multiply
    1,490x = 2,527 × 2,527
  4. Step 4: Simplify right side
    1,490x = 6,385,729
  5. Step 5: Solve for x
    x = 6,385,729/1,490
  6. Step 6: Final answer
    x = 4,285.72

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Why These Related Problems?

These problems maintain the same ratio (1.70) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.