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Finding the Third Proportional to 46,364.50 and 70,431

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Solution

The third proportional to 46,364.50 and 70,431 is: 106,989.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,364.50 : 70,431 = 70,431 : x
  2. Step 2: Convert to fraction form
    46,364.50/70,431 = 70,431/x
  3. Step 3: Cross multiply
    46,364.50x = 70,431 × 70,431
  4. Step 4: Simplify right side
    46,364.50x = 4,960,525,761
  5. Step 5: Solve for x
    x = 4,960,525,761/46,364.50
  6. Step 6: Final answer
    x = 106,989.74

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Why These Related Problems?

These problems maintain the same ratio (1.52) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.