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Finding the Fourth Proportional to 38,607, 57,910.50 and 10,905.72

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Solution

The fourth proportional to 38,607, 57,910.50 and 10,905.72 is: 16,358.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    38,607 : 57,910.50 = 10,905.72 : x
  2. Step 2: Convert to fraction form
    38,607/57,910.50 = 10,905.72/x
  3. Step 3: Cross multiply
    38,607x = 57,910.50 × 10,905.72
  4. Step 4: Simplify right side
    38,607x = 631,555,698.06
  5. Step 5: Solve for x
    x = 631,555,698.06/38,607
  6. Step 6: Final answer
    x = 16,358.58

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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.