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Finding the Fourth Proportional to 9,334.34, 12,881.36 and 5,085.39

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Solution

The fourth proportional to 9,334.34, 12,881.36 and 5,085.39 is: 7,017.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,334.34 : 12,881.36 = 5,085.39 : x
  2. Step 2: Convert to fraction form
    9,334.34/12,881.36 = 5,085.39/x
  3. Step 3: Cross multiply
    9,334.34x = 12,881.36 × 5,085.39
  4. Step 4: Simplify right side
    9,334.34x = 65,506,757.68
  5. Step 5: Solve for x
    x = 65,506,757.68/9,334.34
  6. Step 6: Final answer
    x = 7,017.82

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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.