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Finding the Fourth Proportional to 53,897.98, 80,827.26 and 20,601.58

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Solution

The fourth proportional to 53,897.98, 80,827.26 and 20,601.58 is: 30,894.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,897.98 : 80,827.26 = 20,601.58 : x
  2. Step 2: Convert to fraction form
    53,897.98/80,827.26 = 20,601.58/x
  3. Step 3: Cross multiply
    53,897.98x = 80,827.26 × 20,601.58
  4. Step 4: Simplify right side
    53,897.98x = 1,665,169,263.07
  5. Step 5: Solve for x
    x = 1,665,169,263.07/53,897.98
  6. Step 6: Final answer
    x = 30,894.84

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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.