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Finding the Fourth Proportional to 38,305.40, 57,458.10 and 34,417.40

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Solution

The fourth proportional to 38,305.40, 57,458.10 and 34,417.40 is: 51,626.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,305.40 : 57,458.10 = 34,417.40 : x
  2. Step 2: Convert to fraction form
    38,305.40/57,458.10 = 34,417.40/x
  3. Step 3: Cross multiply
    38,305.40x = 57,458.10 × 34,417.40
  4. Step 4: Simplify right side
    38,305.40x = 1,977,558,410.94
  5. Step 5: Solve for x
    x = 1,977,558,410.94/38,305.40
  6. Step 6: Final answer
    x = 51,626.10

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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.