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Finding the Fourth Proportional to 9,931.16, 13,699.86 and 6,744.62

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Solution

The fourth proportional to 9,931.16, 13,699.86 and 6,744.62 is: 9,304.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,931.16 : 13,699.86 = 6,744.62 : x
  2. Step 2: Convert to fraction form
    9,931.16/13,699.86 = 6,744.62/x
  3. Step 3: Cross multiply
    9,931.16x = 13,699.86 × 6,744.62
  4. Step 4: Simplify right side
    9,931.16x = 92,400,349.75
  5. Step 5: Solve for x
    x = 92,400,349.75/9,931.16
  6. Step 6: Final answer
    x = 9,304.08

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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.