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Finding the Fourth Proportional to 53,994.48, 80,992.26 and 18,934.98

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Solution

The fourth proportional to 53,994.48, 80,992.26 and 18,934.98 is: 28,402.66

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,994.48 : 80,992.26 = 18,934.98 : x
  2. Step 2: Convert to fraction form
    53,994.48/80,992.26 = 18,934.98/x
  3. Step 3: Cross multiply
    53,994.48x = 80,992.26 × 18,934.98
  4. Step 4: Simplify right side
    53,994.48x = 1,533,586,823.25
  5. Step 5: Solve for x
    x = 1,533,586,823.25/53,994.48
  6. Step 6: Final answer
    x = 28,402.66

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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.