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Finding the Fourth Proportional to 13,792.96, 19,033.92 and 7,505.20

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Solution

The fourth proportional to 13,792.96, 19,033.92 and 7,505.20 is: 10,356.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,792.96 : 19,033.92 = 7,505.20 : x
  2. Step 2: Convert to fraction form
    13,792.96/19,033.92 = 7,505.20/x
  3. Step 3: Cross multiply
    13,792.96x = 19,033.92 × 7,505.20
  4. Step 4: Simplify right side
    13,792.96x = 142,853,376.38
  5. Step 5: Solve for x
    x = 142,853,376.38/13,792.96
  6. Step 6: Final answer
    x = 10,356.98

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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.