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Finding the Fourth Proportional to 19,356.99, 26,538.74 and 19,007.07

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Solution

The fourth proportional to 19,356.99, 26,538.74 and 19,007.07 is: 26,058.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,356.99 : 26,538.74 = 19,007.07 : x
  2. Step 2: Convert to fraction form
    19,356.99/26,538.74 = 19,007.07/x
  3. Step 3: Cross multiply
    19,356.99x = 26,538.74 × 19,007.07
  4. Step 4: Simplify right side
    19,356.99x = 504,423,593.86
  5. Step 5: Solve for x
    x = 504,423,593.86/19,356.99
  6. Step 6: Final answer
    x = 26,058.99

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.37) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.