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Finding the Third Proportional to 56,688 and 79,254

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Solution

The third proportional to 56,688 and 79,254 is: 110,802.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,688 : 79,254 = 79,254 : x
  2. Step 2: Convert to fraction form
    56,688/79,254 = 79,254/x
  3. Step 3: Cross multiply
    56,688x = 79,254 × 79,254
  4. Step 4: Simplify right side
    56,688x = 6,281,196,516
  5. Step 5: Solve for x
    x = 6,281,196,516/56,688
  6. Step 6: Final answer
    x = 110,802.93

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Why These Related Problems?

These problems maintain the same ratio (1.40) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.