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Finding the Fourth Proportional to 35,474.88, 48,950.73 and 20,368.20

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Solution

The fourth proportional to 35,474.88, 48,950.73 and 20,368.20 is: 28,105.47

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,474.88 : 48,950.73 = 20,368.20 : x
  2. Step 2: Convert to fraction form
    35,474.88/48,950.73 = 20,368.20/x
  3. Step 3: Cross multiply
    35,474.88x = 48,950.73 × 20,368.20
  4. Step 4: Simplify right side
    35,474.88x = 997,038,258.79
  5. Step 5: Solve for x
    x = 997,038,258.79/35,474.88
  6. Step 6: Final answer
    x = 28,105.47

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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.