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Finding the Fourth Proportional to 13,392.60, 18,483.12 and 10,029.48

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Solution

The fourth proportional to 13,392.60, 18,483.12 and 10,029.48 is: 13,841.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,392.60 : 18,483.12 = 10,029.48 : x
  2. Step 2: Convert to fraction form
    13,392.60/18,483.12 = 10,029.48/x
  3. Step 3: Cross multiply
    13,392.60x = 18,483.12 × 10,029.48
  4. Step 4: Simplify right side
    13,392.60x = 185,376,082.38
  5. Step 5: Solve for x
    x = 185,376,082.38/13,392.60
  6. Step 6: Final answer
    x = 13,841.68

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.