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Finding the Fourth Proportional to 13,296.84, 18,349.54 and 7,328.52

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Solution

The fourth proportional to 13,296.84, 18,349.54 and 7,328.52 is: 10,113.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,296.84 : 18,349.54 = 7,328.52 : x
  2. Step 2: Convert to fraction form
    13,296.84/18,349.54 = 7,328.52/x
  3. Step 3: Cross multiply
    13,296.84x = 18,349.54 × 7,328.52
  4. Step 4: Simplify right side
    13,296.84x = 134,474,970.88
  5. Step 5: Solve for x
    x = 134,474,970.88/13,296.84
  6. Step 6: Final answer
    x = 10,113.30

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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.