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Finding the Fourth Proportional to 53,246.76, 73,484.12 and 30,890.76

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Solution

The fourth proportional to 53,246.76, 73,484.12 and 30,890.76 is: 42,631.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,246.76 : 73,484.12 = 30,890.76 : x
  2. Step 2: Convert to fraction form
    53,246.76/73,484.12 = 30,890.76/x
  3. Step 3: Cross multiply
    53,246.76x = 73,484.12 × 30,890.76
  4. Step 4: Simplify right side
    53,246.76x = 2,269,980,314.73
  5. Step 5: Solve for x
    x = 2,269,980,314.73/53,246.76
  6. Step 6: Final answer
    x = 42,631.33

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Double scale
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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.