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Finding the Fourth Proportional to 58,136.40, 80,228.40 and 32,985.84

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Solution

The fourth proportional to 58,136.40, 80,228.40 and 32,985.84 is: 45,520.55

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,136.40 : 80,228.40 = 32,985.84 : x
  2. Step 2: Convert to fraction form
    58,136.40/80,228.40 = 32,985.84/x
  3. Step 3: Cross multiply
    58,136.40x = 80,228.40 × 32,985.84
  4. Step 4: Simplify right side
    58,136.40x = 2,646,401,165.86
  5. Step 5: Solve for x
    x = 2,646,401,165.86/58,136.40
  6. Step 6: Final answer
    x = 45,520.55

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.