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Finding the Fourth Proportional to 45,937.60, 68,906.40 and 40,926.40

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Solution

The fourth proportional to 45,937.60, 68,906.40 and 40,926.40 is: 61,389.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,937.60 : 68,906.40 = 40,926.40 : x
  2. Step 2: Convert to fraction form
    45,937.60/68,906.40 = 40,926.40/x
  3. Step 3: Cross multiply
    45,937.60x = 68,906.40 × 40,926.40
  4. Step 4: Simplify right side
    45,937.60x = 2,820,090,888.96
  5. Step 5: Solve for x
    x = 2,820,090,888.96/45,937.60
  6. Step 6: Final answer
    x = 61,389.60

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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.