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Finding the Fourth Proportional to 15,235.14, 21,026.87 and 9,268.68

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Solution

The fourth proportional to 15,235.14, 21,026.87 and 9,268.68 is: 12,792.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,235.14 : 21,026.87 = 9,268.68 : x
  2. Step 2: Convert to fraction form
    15,235.14/21,026.87 = 9,268.68/x
  3. Step 3: Cross multiply
    15,235.14x = 21,026.87 × 9,268.68
  4. Step 4: Simplify right side
    15,235.14x = 194,891,329.43
  5. Step 5: Solve for x
    x = 194,891,329.43/15,235.14
  6. Step 6: Final answer
    x = 12,792.22

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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.