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Finding the Fourth Proportional to 76,357.38, 105,474.12 and 63,652.08

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Solution

The fourth proportional to 76,357.38, 105,474.12 and 63,652.08 is: 87,924.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,357.38 : 105,474.12 = 63,652.08 : x
  2. Step 2: Convert to fraction form
    76,357.38/105,474.12 = 63,652.08/x
  3. Step 3: Cross multiply
    76,357.38x = 105,474.12 × 63,652.08
  4. Step 4: Simplify right side
    76,357.38x = 6,713,647,124.17
  5. Step 5: Solve for x
    x = 6,713,647,124.17/76,357.38
  6. Step 6: Final answer
    x = 87,924.01

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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.