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Finding the Fourth Proportional to 16,993.76, 25,506.82 and 7,130.38

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Solution

The fourth proportional to 16,993.76, 25,506.82 and 7,130.38 is: 10,702.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,993.76 : 25,506.82 = 7,130.38 : x
  2. Step 2: Convert to fraction form
    16,993.76/25,506.82 = 7,130.38/x
  3. Step 3: Cross multiply
    16,993.76x = 25,506.82 × 7,130.38
  4. Step 4: Simplify right side
    16,993.76x = 181,873,319.19
  5. Step 5: Solve for x
    x = 181,873,319.19/16,993.76
  6. Step 6: Final answer
    x = 10,702.36

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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.