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Finding the Fourth Proportional to 6,826.16, 9,420.35 and 3,842.93

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Solution

The fourth proportional to 6,826.16, 9,420.35 and 3,842.93 is: 5,303.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,826.16 : 9,420.35 = 3,842.93 : x
  2. Step 2: Convert to fraction form
    6,826.16/9,420.35 = 3,842.93/x
  3. Step 3: Cross multiply
    6,826.16x = 9,420.35 × 3,842.93
  4. Step 4: Simplify right side
    6,826.16x = 36,201,679.31
  5. Step 5: Solve for x
    x = 36,201,679.31/6,826.16
  6. Step 6: Final answer
    x = 5,303.38

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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.