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Finding the Fourth Proportional to 14,395.44, 21,587.64 and 5,629.44

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Solution

The fourth proportional to 14,395.44, 21,587.64 and 5,629.44 is: 8,442.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,395.44 : 21,587.64 = 5,629.44 : x
  2. Step 2: Convert to fraction form
    14,395.44/21,587.64 = 5,629.44/x
  3. Step 3: Cross multiply
    14,395.44x = 21,587.64 × 5,629.44
  4. Step 4: Simplify right side
    14,395.44x = 121,526,324.12
  5. Step 5: Solve for x
    x = 121,526,324.12/14,395.44
  6. Step 6: Final answer
    x = 8,442.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.