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Finding the Fourth Proportional to 50,869.95, 76,274.96 and 20,875.25

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Solution

The fourth proportional to 50,869.95, 76,274.96 and 20,875.25 is: 31,300.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    50,869.95 : 76,274.96 = 20,875.25 : x
  2. Step 2: Convert to fraction form
    50,869.95/76,274.96 = 20,875.25/x
  3. Step 3: Cross multiply
    50,869.95x = 76,274.96 × 20,875.25
  4. Step 4: Simplify right side
    50,869.95x = 1,592,258,372.99
  5. Step 5: Solve for x
    x = 1,592,258,372.99/50,869.95
  6. Step 6: Final answer
    x = 31,300.57

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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.