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Finding the Fourth Proportional to 12,792.99, 19,178.19 and 4,996.35

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Solution

The fourth proportional to 12,792.99, 19,178.19 and 4,996.35 is: 7,490.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,792.99 : 19,178.19 = 4,996.35 : x
  2. Step 2: Convert to fraction form
    12,792.99/19,178.19 = 4,996.35/x
  3. Step 3: Cross multiply
    12,792.99x = 19,178.19 × 4,996.35
  4. Step 4: Simplify right side
    12,792.99x = 95,820,949.61
  5. Step 5: Solve for x
    x = 95,820,949.61/12,792.99
  6. Step 6: Final answer
    x = 7,490.11

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.