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Finding the Fourth Proportional to 45,818.70, 68,718.45 and 22,461.90

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Solution

The fourth proportional to 45,818.70, 68,718.45 and 22,461.90 is: 33,688.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    45,818.70 : 68,718.45 = 22,461.90 : x
  2. Step 2: Convert to fraction form
    45,818.70/68,718.45 = 22,461.90/x
  3. Step 3: Cross multiply
    45,818.70x = 68,718.45 × 22,461.90
  4. Step 4: Simplify right side
    45,818.70x = 1,543,546,952.06
  5. Step 5: Solve for x
    x = 1,543,546,952.06/45,818.70
  6. Step 6: Final answer
    x = 33,688.14

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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.