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Finding the Fourth Proportional to 19,345.64, 26,699.22 and 10,963.64

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Solution

The fourth proportional to 19,345.64, 26,699.22 and 10,963.64 is: 15,131.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,345.64 : 26,699.22 = 10,963.64 : x
  2. Step 2: Convert to fraction form
    19,345.64/26,699.22 = 10,963.64/x
  3. Step 3: Cross multiply
    19,345.64x = 26,699.22 × 10,963.64
  4. Step 4: Simplify right side
    19,345.64x = 292,720,636.36
  5. Step 5: Solve for x
    x = 292,720,636.36/19,345.64
  6. Step 6: Final answer
    x = 15,131.09

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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.