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Finding the Fourth Proportional to 58,015.28, 86,978.88 and 29,905.04

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Solution

The fourth proportional to 58,015.28, 86,978.88 and 29,905.04 is: 44,834.86

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,015.28 : 86,978.88 = 29,905.04 : x
  2. Step 2: Convert to fraction form
    58,015.28/86,978.88 = 29,905.04/x
  3. Step 3: Cross multiply
    58,015.28x = 86,978.88 × 29,905.04
  4. Step 4: Simplify right side
    58,015.28x = 2,601,106,885.56
  5. Step 5: Solve for x
    x = 2,601,106,885.56/58,015.28
  6. Step 6: Final answer
    x = 44,834.86

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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.