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Finding the Fourth Proportional to 45,953.40, 68,618.80 and 36,487.20

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Solution

The fourth proportional to 45,953.40, 68,618.80 and 36,487.20 is: 54,483.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,953.40 : 68,618.80 = 36,487.20 : x
  2. Step 2: Convert to fraction form
    45,953.40/68,618.80 = 36,487.20/x
  3. Step 3: Cross multiply
    45,953.40x = 68,618.80 × 36,487.20
  4. Step 4: Simplify right side
    45,953.40x = 2,503,707,879.36
  5. Step 5: Solve for x
    x = 2,503,707,879.36/45,953.40
  6. Step 6: Final answer
    x = 54,483.63

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.