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Finding the Fourth Proportional to 34,921, 48,190.90 and 19,005.40

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Solution

The fourth proportional to 34,921, 48,190.90 and 19,005.40 is: 26,227.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,921 : 48,190.90 = 19,005.40 : x
  2. Step 2: Convert to fraction form
    34,921/48,190.90 = 19,005.40/x
  3. Step 3: Cross multiply
    34,921x = 48,190.90 × 19,005.40
  4. Step 4: Simplify right side
    34,921x = 915,887,330.86
  5. Step 5: Solve for x
    x = 915,887,330.86/34,921
  6. Step 6: Final answer
    x = 26,227.41

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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.