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Finding the Fourth Proportional to 9,402.68, 12,880.03 and 9,299

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Solution

The fourth proportional to 9,402.68, 12,880.03 and 9,299 is: 12,738.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,402.68 : 12,880.03 = 9,299 : x
  2. Step 2: Convert to fraction form
    9,402.68/12,880.03 = 9,299/x
  3. Step 3: Cross multiply
    9,402.68x = 12,880.03 × 9,299
  4. Step 4: Simplify right side
    9,402.68x = 119,771,398.97
  5. Step 5: Solve for x
    x = 119,771,398.97/9,402.68
  6. Step 6: Final answer
    x = 12,738.01

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.