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Finding the Third Proportional to 14,468 and 15,780

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Solution

The third proportional to 14,468 and 15,780 is: 17,210.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,468 : 15,780 = 15,780 : x
  2. Step 2: Convert to fraction form
    14,468/15,780 = 15,780/x
  3. Step 3: Cross multiply
    14,468x = 15,780 × 15,780
  4. Step 4: Simplify right side
    14,468x = 249,008,400
  5. Step 5: Solve for x
    x = 249,008,400/14,468
  6. Step 6: Final answer
    x = 17,210.98

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Why These Related Problems?

These problems maintain the same ratio (1.09) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.