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Finding the Fourth Proportional to 35,804.66, 53,731.64 and 12,431.10

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Solution

The fourth proportional to 35,804.66, 53,731.64 and 12,431.10 is: 18,655.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,804.66 : 53,731.64 = 12,431.10 : x
  2. Step 2: Convert to fraction form
    35,804.66/53,731.64 = 12,431.10/x
  3. Step 3: Cross multiply
    35,804.66x = 53,731.64 × 12,431.10
  4. Step 4: Simplify right side
    35,804.66x = 667,943,390.00
  5. Step 5: Solve for x
    x = 667,943,390.00/35,804.66
  6. Step 6: Final answer
    x = 18,655.21

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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.