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Finding the Fourth Proportional to 35,894.64, 53,841.48 and 12,520.96

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Solution

The fourth proportional to 35,894.64, 53,841.48 and 12,520.96 is: 18,781.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,894.64 : 53,841.48 = 12,520.96 : x
  2. Step 2: Convert to fraction form
    35,894.64/53,841.48 = 12,520.96/x
  3. Step 3: Cross multiply
    35,894.64x = 53,841.48 × 12,520.96
  4. Step 4: Simplify right side
    35,894.64x = 674,147,017.42
  5. Step 5: Solve for x
    x = 674,147,017.42/35,894.64
  6. Step 6: Final answer
    x = 18,781.27

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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.