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Finding the Fourth Proportional to 19,093.80, 28,500.15 and 17,756.76

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Solution

The fourth proportional to 19,093.80, 28,500.15 and 17,756.76 is: 26,504.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,093.80 : 28,500.15 = 17,756.76 : x
  2. Step 2: Convert to fraction form
    19,093.80/28,500.15 = 17,756.76/x
  3. Step 3: Cross multiply
    19,093.80x = 28,500.15 × 17,756.76
  4. Step 4: Simplify right side
    19,093.80x = 506,070,323.51
  5. Step 5: Solve for x
    x = 506,070,323.51/19,093.80
  6. Step 6: Final answer
    x = 26,504.43

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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.