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Finding the Fourth Proportional to 8,048.70, 12,133.40 and 7,513.49

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Solution

The fourth proportional to 8,048.70, 12,133.40 and 7,513.49 is: 11,326.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,048.70 : 12,133.40 = 7,513.49 : x
  2. Step 2: Convert to fraction form
    8,048.70/12,133.40 = 7,513.49/x
  3. Step 3: Cross multiply
    8,048.70x = 12,133.40 × 7,513.49
  4. Step 4: Simplify right side
    8,048.70x = 91,164,172.33
  5. Step 5: Solve for x
    x = 91,164,172.33/8,048.70
  6. Step 6: Final answer
    x = 11,326.57

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.51) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.