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Finding the Fourth Proportional to 35,138.70, 48,492.59 and 19,223.15

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Solution

The fourth proportional to 35,138.70, 48,492.59 and 19,223.15 is: 26,528.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,138.70 : 48,492.59 = 19,223.15 : x
  2. Step 2: Convert to fraction form
    35,138.70/48,492.59 = 19,223.15/x
  3. Step 3: Cross multiply
    35,138.70x = 48,492.59 × 19,223.15
  4. Step 4: Simplify right side
    35,138.70x = 932,179,992.88
  5. Step 5: Solve for x
    x = 932,179,992.88/35,138.70
  6. Step 6: Final answer
    x = 26,528.59

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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.