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Finding the Fourth Proportional to 50,991.84, 70,368.27 and 28,330.88

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Solution

The fourth proportional to 50,991.84, 70,368.27 and 28,330.88 is: 39,096.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,991.84 : 70,368.27 = 28,330.88 : x
  2. Step 2: Convert to fraction form
    50,991.84/70,368.27 = 28,330.88/x
  3. Step 3: Cross multiply
    50,991.84x = 70,368.27 × 28,330.88
  4. Step 4: Simplify right side
    50,991.84x = 1,993,594,661.34
  5. Step 5: Solve for x
    x = 1,993,594,661.34/50,991.84
  6. Step 6: Final answer
    x = 39,096.35

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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.