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Finding the Fourth Proportional to 8,607.66, 11,884.44 and 5,779.26

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Solution

The fourth proportional to 8,607.66, 11,884.44 and 5,779.26 is: 7,979.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,607.66 : 11,884.44 = 5,779.26 : x
  2. Step 2: Convert to fraction form
    8,607.66/11,884.44 = 5,779.26/x
  3. Step 3: Cross multiply
    8,607.66x = 11,884.44 × 5,779.26
  4. Step 4: Simplify right side
    8,607.66x = 68,683,268.71
  5. Step 5: Solve for x
    x = 68,683,268.71/8,607.66
  6. Step 6: Final answer
    x = 7,979.32

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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.