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Finding the Fourth Proportional to 34,872.99, 48,124.88 and 18,957.40

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Solution

The fourth proportional to 34,872.99, 48,124.88 and 18,957.40 is: 26,161.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,872.99 : 48,124.88 = 18,957.40 : x
  2. Step 2: Convert to fraction form
    34,872.99/48,124.88 = 18,957.40/x
  3. Step 3: Cross multiply
    34,872.99x = 48,124.88 × 18,957.40
  4. Step 4: Simplify right side
    34,872.99x = 912,322,527.19
  5. Step 5: Solve for x
    x = 912,322,527.19/34,872.99
  6. Step 6: Final answer
    x = 26,161.29

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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.