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Finding the Fourth Proportional to 13,263.17, 18,303.49 and 7,294.99

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Solution

The fourth proportional to 13,263.17, 18,303.49 and 7,294.99 is: 10,067.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,263.17 : 18,303.49 = 7,294.99 : x
  2. Step 2: Convert to fraction form
    13,263.17/18,303.49 = 7,294.99/x
  3. Step 3: Cross multiply
    13,263.17x = 18,303.49 × 7,294.99
  4. Step 4: Simplify right side
    13,263.17x = 133,523,743.23
  5. Step 5: Solve for x
    x = 133,523,743.23/13,263.17
  6. Step 6: Final answer
    x = 10,067.26

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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.