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Finding the Third Proportional to 12,152 and 15,528

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Solution

The third proportional to 12,152 and 15,528 is: 19,841.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,152 : 15,528 = 15,528 : x
  2. Step 2: Convert to fraction form
    12,152/15,528 = 15,528/x
  3. Step 3: Cross multiply
    12,152x = 15,528 × 15,528
  4. Step 4: Simplify right side
    12,152x = 241,118,784
  5. Step 5: Solve for x
    x = 241,118,784/12,152
  6. Step 6: Final answer
    x = 19,841.90

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Why These Related Problems?

These problems maintain the same ratio (1.28) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.