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Finding the Fourth Proportional to 14,499.01, 20,048.91 and 11,509.66

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Solution

The fourth proportional to 14,499.01, 20,048.91 and 11,509.66 is: 15,915.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,499.01 : 20,048.91 = 11,509.66 : x
  2. Step 2: Convert to fraction form
    14,499.01/20,048.91 = 11,509.66/x
  3. Step 3: Cross multiply
    14,499.01x = 20,048.91 × 11,509.66
  4. Step 4: Simplify right side
    14,499.01x = 230,756,137.47
  5. Step 5: Solve for x
    x = 230,756,137.47/14,499.01
  6. Step 6: Final answer
    x = 15,915.30

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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.