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Finding the Fourth Proportional to 35,893.76, 53,840.86 and 12,520.22

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Solution

The fourth proportional to 35,893.76, 53,840.86 and 12,520.22 is: 18,780.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,893.76 : 53,840.86 = 12,520.22 : x
  2. Step 2: Convert to fraction form
    35,893.76/53,840.86 = 12,520.22/x
  3. Step 3: Cross multiply
    35,893.76x = 53,840.86 × 12,520.22
  4. Step 4: Simplify right side
    35,893.76x = 674,099,412.19
  5. Step 5: Solve for x
    x = 674,099,412.19/35,893.76
  6. Step 6: Final answer
    x = 18,780.41

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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.