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Finding the Third Proportional to 531.88 and 802.50

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Solution

The third proportional to 531.88 and 802.50 is: 1,210.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    531.88 : 802.50 = 802.50 : x
  2. Step 2: Convert to fraction form
    531.88/802.50 = 802.50/x
  3. Step 3: Cross multiply
    531.88x = 802.50 × 802.50
  4. Step 4: Simplify right side
    531.88x = 644,006.25
  5. Step 5: Solve for x
    x = 644,006.25/531.88
  6. Step 6: Final answer
    x = 1,210.82

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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.