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Finding the Fourth Proportional to 35,055.40, 52,583.10 and 21,231.40

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Solution

The fourth proportional to 35,055.40, 52,583.10 and 21,231.40 is: 31,847.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,055.40 : 52,583.10 = 21,231.40 : x
  2. Step 2: Convert to fraction form
    35,055.40/52,583.10 = 21,231.40/x
  3. Step 3: Cross multiply
    35,055.40x = 52,583.10 × 21,231.40
  4. Step 4: Simplify right side
    35,055.40x = 1,116,412,829.34
  5. Step 5: Solve for x
    x = 1,116,412,829.34/35,055.40
  6. Step 6: Final answer
    x = 31,847.10

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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.