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Finding the Fourth Proportional to 12,282.65, 16,950.06 and 6,977.47

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Solution

The fourth proportional to 12,282.65, 16,950.06 and 6,977.47 is: 9,628.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,282.65 : 16,950.06 = 6,977.47 : x
  2. Step 2: Convert to fraction form
    12,282.65/16,950.06 = 6,977.47/x
  3. Step 3: Cross multiply
    12,282.65x = 16,950.06 × 6,977.47
  4. Step 4: Simplify right side
    12,282.65x = 118,268,541.55
  5. Step 5: Solve for x
    x = 118,268,541.55/12,282.65
  6. Step 6: Final answer
    x = 9,628.91

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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.