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Finding the Fourth Proportional to 35,136.71, 52,705.16 and 12,940.48

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Solution

The fourth proportional to 35,136.71, 52,705.16 and 12,940.48 is: 19,410.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,136.71 : 52,705.16 = 12,940.48 : x
  2. Step 2: Convert to fraction form
    35,136.71/52,705.16 = 12,940.48/x
  3. Step 3: Cross multiply
    35,136.71x = 52,705.16 × 12,940.48
  4. Step 4: Simplify right side
    35,136.71x = 682,030,068.88
  5. Step 5: Solve for x
    x = 682,030,068.88/35,136.71
  6. Step 6: Final answer
    x = 19,410.75

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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.