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Finding the Fourth Proportional to 38,699.78, 57,994.08 and 16,507.19

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Solution

The fourth proportional to 38,699.78, 57,994.08 and 16,507.19 is: 24,737.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,699.78 : 57,994.08 = 16,507.19 : x
  2. Step 2: Convert to fraction form
    38,699.78/57,994.08 = 16,507.19/x
  3. Step 3: Cross multiply
    38,699.78x = 57,994.08 × 16,507.19
  4. Step 4: Simplify right side
    38,699.78x = 957,319,380.52
  5. Step 5: Solve for x
    x = 957,319,380.52/38,699.78
  6. Step 6: Final answer
    x = 24,737.08

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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.