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Finding the Fourth Proportional to 40,688.70, 61,033.05 and 25,136.70

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Solution

The fourth proportional to 40,688.70, 61,033.05 and 25,136.70 is: 37,705.05

Step by Step Solution

  1. Step 1: Write the proportion equation
    40,688.70 : 61,033.05 = 25,136.70 : x
  2. Step 2: Convert to fraction form
    40,688.70/61,033.05 = 25,136.70/x
  3. Step 3: Cross multiply
    40,688.70x = 61,033.05 × 25,136.70
  4. Step 4: Simplify right side
    40,688.70x = 1,534,169,467.94
  5. Step 5: Solve for x
    x = 1,534,169,467.94/40,688.70
  6. Step 6: Final answer
    x = 37,705.05

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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.