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Finding the Fourth Proportional to 58,441, 80,648.58 and 31,945

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Solution

The fourth proportional to 58,441, 80,648.58 and 31,945 is: 44,084.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,441 : 80,648.58 = 31,945 : x
  2. Step 2: Convert to fraction form
    58,441/80,648.58 = 31,945/x
  3. Step 3: Cross multiply
    58,441x = 80,648.58 × 31,945
  4. Step 4: Simplify right side
    58,441x = 2,576,318,888.10
  5. Step 5: Solve for x
    x = 2,576,318,888.10/58,441
  6. Step 6: Final answer
    x = 44,084.10

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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.