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Finding the Fourth Proportional to 50,698.85, 69,963.14 and 28,039.10

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Solution

The fourth proportional to 50,698.85, 69,963.14 and 28,039.10 is: 38,693.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,698.85 : 69,963.14 = 28,039.10 : x
  2. Step 2: Convert to fraction form
    50,698.85/69,963.14 = 28,039.10/x
  3. Step 3: Cross multiply
    50,698.85x = 69,963.14 × 28,039.10
  4. Step 4: Simplify right side
    50,698.85x = 1,961,703,199.06
  5. Step 5: Solve for x
    x = 1,961,703,199.06/50,698.85
  6. Step 6: Final answer
    x = 38,693.25

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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.