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Finding the Fourth Proportional to 76,625.28, 105,736.32 and 44,790.48

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Solution

The fourth proportional to 76,625.28, 105,736.32 and 44,790.48 is: 61,807.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,625.28 : 105,736.32 = 44,790.48 : x
  2. Step 2: Convert to fraction form
    76,625.28/105,736.32 = 44,790.48/x
  3. Step 3: Cross multiply
    76,625.28x = 105,736.32 × 44,790.48
  4. Step 4: Simplify right side
    76,625.28x = 4,735,980,526.23
  5. Step 5: Solve for x
    x = 4,735,980,526.23/76,625.28
  6. Step 6: Final answer
    x = 61,807.02

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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.