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Finding the Fourth Proportional to 38,894.98, 58,345.53 and 19,162.76

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Solution

The fourth proportional to 38,894.98, 58,345.53 and 19,162.76 is: 28,745.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,894.98 : 58,345.53 = 19,162.76 : x
  2. Step 2: Convert to fraction form
    38,894.98/58,345.53 = 19,162.76/x
  3. Step 3: Cross multiply
    38,894.98x = 58,345.53 × 19,162.76
  4. Step 4: Simplify right side
    38,894.98x = 1,118,061,388.46
  5. Step 5: Solve for x
    x = 1,118,061,388.46/38,894.98
  6. Step 6: Final answer
    x = 28,745.65

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.