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Finding the Fourth Proportional to 50,710.92, 75,935.16 and 45,068.64

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Solution

The fourth proportional to 50,710.92, 75,935.16 and 45,068.64 is: 67,486.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,710.92 : 75,935.16 = 45,068.64 : x
  2. Step 2: Convert to fraction form
    50,710.92/75,935.16 = 45,068.64/x
  3. Step 3: Cross multiply
    50,710.92x = 75,935.16 × 45,068.64
  4. Step 4: Simplify right side
    50,710.92x = 3,422,294,389.38
  5. Step 5: Solve for x
    x = 3,422,294,389.38/50,710.92
  6. Step 6: Final answer
    x = 67,486.34

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.