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Finding the Fourth Proportional to 19,237.86, 26,489.03 and 16,398.87

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Solution

The fourth proportional to 19,237.86, 26,489.03 and 16,398.87 is: 22,579.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,237.86 : 26,489.03 = 16,398.87 : x
  2. Step 2: Convert to fraction form
    19,237.86/26,489.03 = 16,398.87/x
  3. Step 3: Cross multiply
    19,237.86x = 26,489.03 × 16,398.87
  4. Step 4: Simplify right side
    19,237.86x = 434,390,159.40
  5. Step 5: Solve for x
    x = 434,390,159.40/19,237.86
  6. Step 6: Final answer
    x = 22,579.96

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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.