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Finding the Fourth Proportional to 34,709.88, 47,897.70 and 19,605.64

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Solution

The fourth proportional to 34,709.88, 47,897.70 and 19,605.64 is: 27,054.69

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,709.88 : 47,897.70 = 19,605.64 : x
  2. Step 2: Convert to fraction form
    34,709.88/47,897.70 = 19,605.64/x
  3. Step 3: Cross multiply
    34,709.88x = 47,897.70 × 19,605.64
  4. Step 4: Simplify right side
    34,709.88x = 939,065,063.03
  5. Step 5: Solve for x
    x = 939,065,063.03/34,709.88
  6. Step 6: Final answer
    x = 27,054.69

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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.