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Finding the Fourth Proportional to 34,392.70, 47,458.63 and 19,286.00

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Solution

The fourth proportional to 34,392.70, 47,458.63 and 19,286.00 is: 26,612.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,392.70 : 47,458.63 = 19,286.00 : x
  2. Step 2: Convert to fraction form
    34,392.70/47,458.63 = 19,286.00/x
  3. Step 3: Cross multiply
    34,392.70x = 47,458.63 × 19,286.00
  4. Step 4: Simplify right side
    34,392.70x = 915,286,804.46
  5. Step 5: Solve for x
    x = 915,286,804.46/34,392.70
  6. Step 6: Final answer
    x = 26,612.83

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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.