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Finding the Fourth Proportional to 50,697.84, 69,962.44 and 28,341.84

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Solution

The fourth proportional to 50,697.84, 69,962.44 and 28,341.84 is: 39,111.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,697.84 : 69,962.44 = 28,341.84 : x
  2. Step 2: Convert to fraction form
    50,697.84/69,962.44 = 28,341.84/x
  3. Step 3: Cross multiply
    50,697.84x = 69,962.44 × 28,341.84
  4. Step 4: Simplify right side
    50,697.84x = 1,982,864,280.49
  5. Step 5: Solve for x
    x = 1,982,864,280.49/50,697.84
  6. Step 6: Final answer
    x = 39,111.42

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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.