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Finding the Fourth Proportional to 19,598.51, 27,027.51 and 15,115.16

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Solution

The fourth proportional to 19,598.51, 27,027.51 and 15,115.16 is: 20,844.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,598.51 : 27,027.51 = 15,115.16 : x
  2. Step 2: Convert to fraction form
    19,598.51/27,027.51 = 15,115.16/x
  3. Step 3: Cross multiply
    19,598.51x = 27,027.51 × 15,115.16
  4. Step 4: Simplify right side
    19,598.51x = 408,525,002.91
  5. Step 5: Solve for x
    x = 408,525,002.91/19,598.51
  6. Step 6: Final answer
    x = 20,844.70

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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.