Home / 35,140.72-52,731.87-12,969.54

Finding the Fourth Proportional to 35,140.72, 52,731.87 and 12,969.54

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Solution

The fourth proportional to 35,140.72, 52,731.87 and 12,969.54 is: 19,461.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,140.72 : 52,731.87 = 12,969.54 : x
  2. Step 2: Convert to fraction form
    35,140.72/52,731.87 = 12,969.54/x
  3. Step 3: Cross multiply
    35,140.72x = 52,731.87 × 12,969.54
  4. Step 4: Simplify right side
    35,140.72x = 683,908,097.24
  5. Step 5: Solve for x
    x = 683,908,097.24/35,140.72
  6. Step 6: Final answer
    x = 19,461.98

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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.