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Finding the Fourth Proportional to 12,792.37, 17,653.44 and 7,488.19

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Solution

The fourth proportional to 12,792.37, 17,653.44 and 7,488.19 is: 10,333.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,792.37 : 17,653.44 = 7,488.19 : x
  2. Step 2: Convert to fraction form
    12,792.37/17,653.44 = 7,488.19/x
  3. Step 3: Cross multiply
    12,792.37x = 17,653.44 × 7,488.19
  4. Step 4: Simplify right side
    12,792.37x = 132,192,312.87
  5. Step 5: Solve for x
    x = 132,192,312.87/12,792.37
  6. Step 6: Final answer
    x = 10,333.68

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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.