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Finding the Fourth Proportional to 9,365.96, 12,920.64 and 6,007.16

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Solution

The fourth proportional to 9,365.96, 12,920.64 and 6,007.16 is: 8,287.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,365.96 : 12,920.64 = 6,007.16 : x
  2. Step 2: Convert to fraction form
    9,365.96/12,920.64 = 6,007.16/x
  3. Step 3: Cross multiply
    9,365.96x = 12,920.64 × 6,007.16
  4. Step 4: Simplify right side
    9,365.96x = 77,616,351.78
  5. Step 5: Solve for x
    x = 77,616,351.78/9,365.96
  6. Step 6: Final answer
    x = 8,287.07

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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.