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Finding the Fourth Proportional to 45,903.70, 68,855.55 and 45,612.10

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Solution

The fourth proportional to 45,903.70, 68,855.55 and 45,612.10 is: 68,418.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,903.70 : 68,855.55 = 45,612.10 : x
  2. Step 2: Convert to fraction form
    45,903.70/68,855.55 = 45,612.10/x
  3. Step 3: Cross multiply
    45,903.70x = 68,855.55 × 45,612.10
  4. Step 4: Simplify right side
    45,903.70x = 3,140,646,232.16
  5. Step 5: Solve for x
    x = 3,140,646,232.16/45,903.70
  6. Step 6: Final answer
    x = 68,418.15

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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.