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Finding the Fourth Proportional to 60,984.70, 91,477.05 and 46,015.90

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Solution

The fourth proportional to 60,984.70, 91,477.05 and 46,015.90 is: 69,023.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,984.70 : 91,477.05 = 46,015.90 : x
  2. Step 2: Convert to fraction form
    60,984.70/91,477.05 = 46,015.90/x
  3. Step 3: Cross multiply
    60,984.70x = 91,477.05 × 46,015.90
  4. Step 4: Simplify right side
    60,984.70x = 4,209,398,785.10
  5. Step 5: Solve for x
    x = 4,209,398,785.10/60,984.70
  6. Step 6: Final answer
    x = 69,023.85

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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.