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Finding the Fourth Proportional to 53,235.62, 73,468.80 and 30,879.62

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Solution

The fourth proportional to 53,235.62, 73,468.80 and 30,879.62 is: 42,615.99

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,235.62 : 73,468.80 = 30,879.62 : x
  2. Step 2: Convert to fraction form
    53,235.62/73,468.80 = 30,879.62/x
  3. Step 3: Cross multiply
    53,235.62x = 73,468.80 × 30,879.62
  4. Step 4: Simplify right side
    53,235.62x = 2,268,688,625.86
  5. Step 5: Solve for x
    x = 2,268,688,625.86/53,235.62
  6. Step 6: Final answer
    x = 42,615.99

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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.