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Finding the Fourth Proportional to 34,572.60, 47,709.74 and 19,259.15

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Solution

The fourth proportional to 34,572.60, 47,709.74 and 19,259.15 is: 26,577.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    34,572.60 : 47,709.74 = 19,259.15 : x
  2. Step 2: Convert to fraction form
    34,572.60/47,709.74 = 19,259.15/x
  3. Step 3: Cross multiply
    34,572.60x = 47,709.74 × 19,259.15
  4. Step 4: Simplify right side
    34,572.60x = 918,848,848.72
  5. Step 5: Solve for x
    x = 918,848,848.72/34,572.60
  6. Step 6: Final answer
    x = 26,577.37

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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.