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Finding the Fourth Proportional to 10,136.60, 15,204.90 and 5,762.60

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Solution

The fourth proportional to 10,136.60, 15,204.90 and 5,762.60 is: 8,643.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,136.60 : 15,204.90 = 5,762.60 : x
  2. Step 2: Convert to fraction form
    10,136.60/15,204.90 = 5,762.60/x
  3. Step 3: Cross multiply
    10,136.60x = 15,204.90 × 5,762.60
  4. Step 4: Simplify right side
    10,136.60x = 87,619,756.74
  5. Step 5: Solve for x
    x = 87,619,756.74/10,136.60
  6. Step 6: Final answer
    x = 8,643.90

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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.