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Finding the Fourth Proportional to 19,392.86, 26,741.20 and 17,695.20

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Solution

The fourth proportional to 19,392.86, 26,741.20 and 17,695.20 is: 24,400.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,392.86 : 26,741.20 = 17,695.20 : x
  2. Step 2: Convert to fraction form
    19,392.86/26,741.20 = 17,695.20/x
  3. Step 3: Cross multiply
    19,392.86x = 26,741.20 × 17,695.20
  4. Step 4: Simplify right side
    19,392.86x = 473,190,737.72
  5. Step 5: Solve for x
    x = 473,190,737.72/19,392.86
  6. Step 6: Final answer
    x = 24,400.26

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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.