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Finding the Fourth Proportional to 34,854.65, 48,099.32 and 18,939.10

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Solution

The fourth proportional to 34,854.65, 48,099.32 and 18,939.10 is: 26,135.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,854.65 : 48,099.32 = 18,939.10 : x
  2. Step 2: Convert to fraction form
    34,854.65/48,099.32 = 18,939.10/x
  3. Step 3: Cross multiply
    34,854.65x = 48,099.32 × 18,939.10
  4. Step 4: Simplify right side
    34,854.65x = 910,957,711.16
  5. Step 5: Solve for x
    x = 910,957,711.16/34,854.65
  6. Step 6: Final answer
    x = 26,135.90

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.