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Finding the Fourth Proportional to 19,093.70, 28,501.04 and 17,686.74

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Solution

The fourth proportional to 19,093.70, 28,501.04 and 17,686.74 is: 26,400.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,093.70 : 28,501.04 = 17,686.74 : x
  2. Step 2: Convert to fraction form
    19,093.70/28,501.04 = 17,686.74/x
  3. Step 3: Cross multiply
    19,093.70x = 28,501.04 × 17,686.74
  4. Step 4: Simplify right side
    19,093.70x = 504,090,484.21
  5. Step 5: Solve for x
    x = 504,090,484.21/19,093.70
  6. Step 6: Final answer
    x = 26,400.88

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.