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Finding the Fourth Proportional to 35,803.96, 53,705.94 and 13,612.12

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Solution

The fourth proportional to 35,803.96, 53,705.94 and 13,612.12 is: 20,418.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,803.96 : 53,705.94 = 13,612.12 : x
  2. Step 2: Convert to fraction form
    35,803.96/53,705.94 = 13,612.12/x
  3. Step 3: Cross multiply
    35,803.96x = 53,705.94 × 13,612.12
  4. Step 4: Simplify right side
    35,803.96x = 731,051,699.99
  5. Step 5: Solve for x
    x = 731,051,699.99/35,803.96
  6. Step 6: Final answer
    x = 20,418.18

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Double scale
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Similar ratio
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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.