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Finding the Fourth Proportional to 16,977.61, 25,458.06 and 6,980.53

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Solution

The fourth proportional to 16,977.61, 25,458.06 and 6,980.53 is: 10,467.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,977.61 : 25,458.06 = 6,980.53 : x
  2. Step 2: Convert to fraction form
    16,977.61/25,458.06 = 6,980.53/x
  3. Step 3: Cross multiply
    16,977.61x = 25,458.06 × 6,980.53
  4. Step 4: Simplify right side
    16,977.61x = 177,710,751.57
  5. Step 5: Solve for x
    x = 177,710,751.57/16,977.61
  6. Step 6: Final answer
    x = 10,467.36

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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.