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Finding the Fourth Proportional to 47,203.72, 70,788.71 and 15,607.95

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Solution

The fourth proportional to 47,203.72, 70,788.71 and 15,607.95 is: 23,406.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,203.72 : 70,788.71 = 15,607.95 : x
  2. Step 2: Convert to fraction form
    47,203.72/70,788.71 = 15,607.95/x
  3. Step 3: Cross multiply
    47,203.72x = 70,788.71 × 15,607.95
  4. Step 4: Simplify right side
    47,203.72x = 1,104,866,214.26
  5. Step 5: Solve for x
    x = 1,104,866,214.26/47,203.72
  6. Step 6: Final answer
    x = 23,406.34

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.