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Finding the Fourth Proportional to 76,585.78, 105,577.58 and 50,700.96

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Solution

The fourth proportional to 76,585.78, 105,577.58 and 50,700.96 is: 69,893.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,585.78 : 105,577.58 = 50,700.96 : x
  2. Step 2: Convert to fraction form
    76,585.78/105,577.58 = 50,700.96/x
  3. Step 3: Cross multiply
    76,585.78x = 105,577.58 × 50,700.96
  4. Step 4: Simplify right side
    76,585.78x = 5,352,884,787.23
  5. Step 5: Solve for x
    x = 5,352,884,787.23/76,585.78
  6. Step 6: Final answer
    x = 69,893.98

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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.