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Finding the Fourth Proportional to 45,993.64, 68,990.28 and 12,713.64

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Solution

The fourth proportional to 45,993.64, 68,990.28 and 12,713.64 is: 19,070.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,993.64 : 68,990.28 = 12,713.64 : x
  2. Step 2: Convert to fraction form
    45,993.64/68,990.28 = 12,713.64/x
  3. Step 3: Cross multiply
    45,993.64x = 68,990.28 × 12,713.64
  4. Step 4: Simplify right side
    45,993.64x = 877,117,583.42
  5. Step 5: Solve for x
    x = 877,117,583.42/45,993.64
  6. Step 6: Final answer
    x = 19,070.41

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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.