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Finding the Third Proportional to 18,328.50 and 28,587

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Solution

The third proportional to 18,328.50 and 28,587 is: 44,587.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,328.50 : 28,587 = 28,587 : x
  2. Step 2: Convert to fraction form
    18,328.50/28,587 = 28,587/x
  3. Step 3: Cross multiply
    18,328.50x = 28,587 × 28,587
  4. Step 4: Simplify right side
    18,328.50x = 817,216,569
  5. Step 5: Solve for x
    x = 817,216,569/18,328.50
  6. Step 6: Final answer
    x = 44,587.20

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Why These Related Problems?

These problems maintain the same ratio (1.56) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.