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Finding the Fourth Proportional to 45,685.59, 68,477.49 and 19,016.88

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Solution

The fourth proportional to 45,685.59, 68,477.49 and 19,016.88 is: 28,504.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,685.59 : 68,477.49 = 19,016.88 : x
  2. Step 2: Convert to fraction form
    45,685.59/68,477.49 = 19,016.88/x
  3. Step 3: Cross multiply
    45,685.59x = 68,477.49 × 19,016.88
  4. Step 4: Simplify right side
    45,685.59x = 1,302,228,210.03
  5. Step 5: Solve for x
    x = 1,302,228,210.03/45,685.59
  6. Step 6: Final answer
    x = 28,504.13

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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.