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Finding the Fourth Proportional to 16,878.65, 25,317.97 and 6,483.11

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Solution

The fourth proportional to 16,878.65, 25,317.97 and 6,483.11 is: 9,724.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,878.65 : 25,317.97 = 6,483.11 : x
  2. Step 2: Convert to fraction form
    16,878.65/25,317.97 = 6,483.11/x
  3. Step 3: Cross multiply
    16,878.65x = 25,317.97 × 6,483.11
  4. Step 4: Simplify right side
    16,878.65x = 164,139,041.69
  5. Step 5: Solve for x
    x = 164,139,041.69/16,878.65
  6. Step 6: Final answer
    x = 9,724.66

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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.