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Finding the Fourth Proportional to 76,730.32, 105,888.16 and 44,893.07

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Solution

The fourth proportional to 76,730.32, 105,888.16 and 44,893.07 is: 61,952.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,730.32 : 105,888.16 = 44,893.07 : x
  2. Step 2: Convert to fraction form
    76,730.32/105,888.16 = 44,893.07/x
  3. Step 3: Cross multiply
    76,730.32x = 105,888.16 × 44,893.07
  4. Step 4: Simplify right side
    76,730.32x = 4,753,644,579.05
  5. Step 5: Solve for x
    x = 4,753,644,579.05/76,730.32
  6. Step 6: Final answer
    x = 61,952.62

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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.