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Finding the Fourth Proportional to 6,779.16, 9,352.41 and 4,421.22

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Solution

The fourth proportional to 6,779.16, 9,352.41 and 4,421.22 is: 6,099.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,779.16 : 9,352.41 = 4,421.22 : x
  2. Step 2: Convert to fraction form
    6,779.16/9,352.41 = 4,421.22/x
  3. Step 3: Cross multiply
    6,779.16x = 9,352.41 × 4,421.22
  4. Step 4: Simplify right side
    6,779.16x = 41,349,062.14
  5. Step 5: Solve for x
    x = 41,349,062.14/6,779.16
  6. Step 6: Final answer
    x = 6,099.44

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Double scale
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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.