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Finding the Fourth Proportional to 49,139.46, 73,709.15 and 12,203.46

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Solution

The fourth proportional to 49,139.46, 73,709.15 and 12,203.46 is: 18,305.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    49,139.46 : 73,709.15 = 12,203.46 : x
  2. Step 2: Convert to fraction form
    49,139.46/73,709.15 = 12,203.46/x
  3. Step 3: Cross multiply
    49,139.46x = 73,709.15 × 12,203.46
  4. Step 4: Simplify right side
    49,139.46x = 899,506,602.64
  5. Step 5: Solve for x
    x = 899,506,602.64/49,139.46
  6. Step 6: Final answer
    x = 18,305.18

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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.