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Finding the Fourth Proportional to 35,873.80, 53,810.70 and 31,496.20

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Solution

The fourth proportional to 35,873.80, 53,810.70 and 31,496.20 is: 47,244.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,873.80 : 53,810.70 = 31,496.20 : x
  2. Step 2: Convert to fraction form
    35,873.80/53,810.70 = 31,496.20/x
  3. Step 3: Cross multiply
    35,873.80x = 53,810.70 × 31,496.20
  4. Step 4: Simplify right side
    35,873.80x = 1,694,832,569.34
  5. Step 5: Solve for x
    x = 1,694,832,569.34/35,873.80
  6. Step 6: Final answer
    x = 47,244.30

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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.