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Finding the Fourth Proportional to 70,645.58, 106,004.72 and 39,049.77

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Solution

The fourth proportional to 70,645.58, 106,004.72 and 39,049.77 is: 58,594.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,645.58 : 106,004.72 = 39,049.77 : x
  2. Step 2: Convert to fraction form
    70,645.58/106,004.72 = 39,049.77/x
  3. Step 3: Cross multiply
    70,645.58x = 106,004.72 × 39,049.77
  4. Step 4: Simplify right side
    70,645.58x = 4,139,460,032.54
  5. Step 5: Solve for x
    x = 4,139,460,032.54/70,645.58
  6. Step 6: Final answer
    x = 58,594.75

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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.