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Finding the Fourth Proportional to 58,645.26, 80,803.71 and 39,749.58

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Solution

The fourth proportional to 58,645.26, 80,803.71 and 39,749.58 is: 54,768.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,645.26 : 80,803.71 = 39,749.58 : x
  2. Step 2: Convert to fraction form
    58,645.26/80,803.71 = 39,749.58/x
  3. Step 3: Cross multiply
    58,645.26x = 80,803.71 × 39,749.58
  4. Step 4: Simplify right side
    58,645.26x = 3,211,913,534.94
  5. Step 5: Solve for x
    x = 3,211,913,534.94/58,645.26
  6. Step 6: Final answer
    x = 54,768.51

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.