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Finding the Fourth Proportional to 9,812.54, 13,534.49 and 6,786.32

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Solution

The fourth proportional to 9,812.54, 13,534.49 and 6,786.32 is: 9,360.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,812.54 : 13,534.49 = 6,786.32 : x
  2. Step 2: Convert to fraction form
    9,812.54/13,534.49 = 6,786.32/x
  3. Step 3: Cross multiply
    9,812.54x = 13,534.49 × 6,786.32
  4. Step 4: Simplify right side
    9,812.54x = 91,849,329.47
  5. Step 5: Solve for x
    x = 91,849,329.47/9,812.54
  6. Step 6: Final answer
    x = 9,360.40

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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.