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Finding the Fourth Proportional to 13,266.84, 18,308.49 and 7,298.49

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Solution

The fourth proportional to 13,266.84, 18,308.49 and 7,298.49 is: 10,072.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,266.84 : 18,308.49 = 7,298.49 : x
  2. Step 2: Convert to fraction form
    13,266.84/18,308.49 = 7,298.49/x
  3. Step 3: Cross multiply
    13,266.84x = 18,308.49 × 7,298.49
  4. Step 4: Simplify right side
    13,266.84x = 133,624,331.18
  5. Step 5: Solve for x
    x = 133,624,331.18/13,266.84
  6. Step 6: Final answer
    x = 10,072.05

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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.