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Finding the Fourth Proportional to 53,856.70, 74,318.76 and 29,982.76

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Solution

The fourth proportional to 53,856.70, 74,318.76 and 29,982.76 is: 41,374.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,856.70 : 74,318.76 = 29,982.76 : x
  2. Step 2: Convert to fraction form
    53,856.70/74,318.76 = 29,982.76/x
  3. Step 3: Cross multiply
    53,856.70x = 74,318.76 × 29,982.76
  4. Step 4: Simplify right side
    53,856.70x = 2,228,281,544.58
  5. Step 5: Solve for x
    x = 2,228,281,544.58/53,856.70
  6. Step 6: Final answer
    x = 41,374.27

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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.