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Finding the Fourth Proportional to 45,612.98, 68,419.47 and 36,437.30

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Solution

The fourth proportional to 45,612.98, 68,419.47 and 36,437.30 is: 54,655.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,612.98 : 68,419.47 = 36,437.30 : x
  2. Step 2: Convert to fraction form
    45,612.98/68,419.47 = 36,437.30/x
  3. Step 3: Cross multiply
    45,612.98x = 68,419.47 × 36,437.30
  4. Step 4: Simplify right side
    45,612.98x = 2,493,020,754.23
  5. Step 5: Solve for x
    x = 2,493,020,754.23/45,612.98
  6. Step 6: Final answer
    x = 54,655.95

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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.