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Finding the Fourth Proportional to 45,462.60, 68,164.74 and 19,160.28

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Solution

The fourth proportional to 45,462.60, 68,164.74 and 19,160.28 is: 28,728.13

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,462.60 : 68,164.74 = 19,160.28 : x
  2. Step 2: Convert to fraction form
    45,462.60/68,164.74 = 19,160.28/x
  3. Step 3: Cross multiply
    45,462.60x = 68,164.74 × 19,160.28
  4. Step 4: Simplify right side
    45,462.60x = 1,306,055,504.53
  5. Step 5: Solve for x
    x = 1,306,055,504.53/45,462.60
  6. Step 6: Final answer
    x = 28,728.13

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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.