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Finding the Fourth Proportional to 30,400.62, 45,611.46 and 10,681.98

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Solution

The fourth proportional to 30,400.62, 45,611.46 and 10,681.98 is: 16,026.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,400.62 : 45,611.46 = 10,681.98 : x
  2. Step 2: Convert to fraction form
    30,400.62/45,611.46 = 10,681.98/x
  3. Step 3: Cross multiply
    30,400.62x = 45,611.46 × 10,681.98
  4. Step 4: Simplify right side
    30,400.62x = 487,220,703.49
  5. Step 5: Solve for x
    x = 487,220,703.49/30,400.62
  6. Step 6: Final answer
    x = 16,026.67

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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.