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Finding the Fourth Proportional to 74,586.31, 102,923.37 and 47,360.39

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Solution

The fourth proportional to 74,586.31, 102,923.37 and 47,360.39 is: 65,353.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,586.31 : 102,923.37 = 47,360.39 : x
  2. Step 2: Convert to fraction form
    74,586.31/102,923.37 = 47,360.39/x
  3. Step 3: Cross multiply
    74,586.31x = 102,923.37 × 47,360.39
  4. Step 4: Simplify right side
    74,586.31x = 4,874,490,428.70
  5. Step 5: Solve for x
    x = 4,874,490,428.70/74,586.31
  6. Step 6: Final answer
    x = 65,353.69

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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.