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Finding the Fourth Proportional to 8,346.03, 11,512.94 and 5,315.51

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Solution

The fourth proportional to 8,346.03, 11,512.94 and 5,315.51 is: 7,332.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,346.03 : 11,512.94 = 5,315.51 : x
  2. Step 2: Convert to fraction form
    8,346.03/11,512.94 = 5,315.51/x
  3. Step 3: Cross multiply
    8,346.03x = 11,512.94 × 5,315.51
  4. Step 4: Simplify right side
    8,346.03x = 61,197,063.56
  5. Step 5: Solve for x
    x = 61,197,063.56/8,346.03
  6. Step 6: Final answer
    x = 7,332.48

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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.