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Finding the Fourth Proportional to 45,573.40, 68,369.70 and 19,264.60

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Solution

The fourth proportional to 45,573.40, 68,369.70 and 19,264.60 is: 28,900.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,573.40 : 68,369.70 = 19,264.60 : x
  2. Step 2: Convert to fraction form
    45,573.40/68,369.70 = 19,264.60/x
  3. Step 3: Cross multiply
    45,573.40x = 68,369.70 × 19,264.60
  4. Step 4: Simplify right side
    45,573.40x = 1,317,114,922.62
  5. Step 5: Solve for x
    x = 1,317,114,922.62/45,573.40
  6. Step 6: Final answer
    x = 28,900.96

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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.