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Finding the Fourth Proportional to 9,806.10, 13,509.53 and 6,816.74

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Solution

The fourth proportional to 9,806.10, 13,509.53 and 6,816.74 is: 9,391.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,806.10 : 13,509.53 = 6,816.74 : x
  2. Step 2: Convert to fraction form
    9,806.10/13,509.53 = 6,816.74/x
  3. Step 3: Cross multiply
    9,806.10x = 13,509.53 × 6,816.74
  4. Step 4: Simplify right side
    9,806.10x = 92,090,851.90
  5. Step 5: Solve for x
    x = 92,090,851.90/9,806.10
  6. Step 6: Final answer
    x = 9,391.18

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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.