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Finding the Fourth Proportional to 64,505.40, 89,014.46 and 35,826.90

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Solution

The fourth proportional to 64,505.40, 89,014.46 and 35,826.90 is: 49,439.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,505.40 : 89,014.46 = 35,826.90 : x
  2. Step 2: Convert to fraction form
    64,505.40/89,014.46 = 35,826.90/x
  3. Step 3: Cross multiply
    64,505.40x = 89,014.46 × 35,826.90
  4. Step 4: Simplify right side
    64,505.40x = 3,189,112,156.97
  5. Step 5: Solve for x
    x = 3,189,112,156.97/64,505.40
  6. Step 6: Final answer
    x = 49,439.46

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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.