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Finding the Third Proportional to 17,938,638 and 27,829,366.50

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Solution

The third proportional to 17,938,638 and 27,829,366.50 is: 43,173,491.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,938,638 : 27,829,366.50 = 27,829,366.50 : x
  2. Step 2: Convert to fraction form
    17,938,638/27,829,366.50 = 27,829,366.50/x
  3. Step 3: Cross multiply
    17,938,638x = 27,829,366.50 × 27,829,366.50
  4. Step 4: Simplify right side
    17,938,638x = 774,473,639,791,322.25
  5. Step 5: Solve for x
    x = 774,473,639,791,322.25/17,938,638
  6. Step 6: Final answer
    x = 43,173,491.76

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Why These Related Problems?

These problems maintain the same ratio (1.55) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.