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Finding the Fourth Proportional to 53,247.98, 79,879.77 and 15,803.51

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Solution

The fourth proportional to 53,247.98, 79,879.77 and 15,803.51 is: 23,707.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,247.98 : 79,879.77 = 15,803.51 : x
  2. Step 2: Convert to fraction form
    53,247.98/79,879.77 = 15,803.51/x
  3. Step 3: Cross multiply
    53,247.98x = 79,879.77 × 15,803.51
  4. Step 4: Simplify right side
    53,247.98x = 1,262,380,344.59
  5. Step 5: Solve for x
    x = 1,262,380,344.59/53,247.98
  6. Step 6: Final answer
    x = 23,707.57

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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.