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Finding the Fourth Proportional to 34,894.24, 48,154.80 and 19,990.24

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Solution

The fourth proportional to 34,894.24, 48,154.80 and 19,990.24 is: 27,586.96

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,894.24 : 48,154.80 = 19,990.24 : x
  2. Step 2: Convert to fraction form
    34,894.24/48,154.80 = 19,990.24/x
  3. Step 3: Cross multiply
    34,894.24x = 48,154.80 × 19,990.24
  4. Step 4: Simplify right side
    34,894.24x = 962,626,009.15
  5. Step 5: Solve for x
    x = 962,626,009.15/34,894.24
  6. Step 6: Final answer
    x = 27,586.96

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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.