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Finding the Fourth Proportional to 15,309.69, 22,964.66 and 4,216.99

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Solution

The fourth proportional to 15,309.69, 22,964.66 and 4,216.99 is: 6,325.52

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,309.69 : 22,964.66 = 4,216.99 : x
  2. Step 2: Convert to fraction form
    15,309.69/22,964.66 = 4,216.99/x
  3. Step 3: Cross multiply
    15,309.69x = 22,964.66 × 4,216.99
  4. Step 4: Simplify right side
    15,309.69x = 96,841,741.57
  5. Step 5: Solve for x
    x = 96,841,741.57/15,309.69
  6. Step 6: Final answer
    x = 6,325.52

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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.