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Finding the Fourth Proportional to 76,665.28, 105,794.48 and 44,398.32

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Solution

The fourth proportional to 76,665.28, 105,794.48 and 44,398.32 is: 61,267.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,665.28 : 105,794.48 = 44,398.32 : x
  2. Step 2: Convert to fraction form
    76,665.28/105,794.48 = 44,398.32/x
  3. Step 3: Cross multiply
    76,665.28x = 105,794.48 × 44,398.32
  4. Step 4: Simplify right side
    76,665.28x = 4,697,097,177.27
  5. Step 5: Solve for x
    x = 4,697,097,177.27/76,665.28
  6. Step 6: Final answer
    x = 61,267.59

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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.