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Finding the Fourth Proportional to 35,969.87, 53,959.74 and 12,271.06

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Solution

The fourth proportional to 35,969.87, 53,959.74 and 12,271.06 is: 18,408.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,969.87 : 53,959.74 = 12,271.06 : x
  2. Step 2: Convert to fraction form
    35,969.87/53,959.74 = 12,271.06/x
  3. Step 3: Cross multiply
    35,969.87x = 53,959.74 × 12,271.06
  4. Step 4: Simplify right side
    35,969.87x = 662,143,008.41
  5. Step 5: Solve for x
    x = 662,143,008.41/35,969.87
  6. Step 6: Final answer
    x = 18,408.27

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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.