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Finding the Fourth Proportional to 47,291.52, 70,889.40 and 30,662.08

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Solution

The fourth proportional to 47,291.52, 70,889.40 and 30,662.08 is: 45,962.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,291.52 : 70,889.40 = 30,662.08 : x
  2. Step 2: Convert to fraction form
    47,291.52/70,889.40 = 30,662.08/x
  3. Step 3: Cross multiply
    47,291.52x = 70,889.40 × 30,662.08
  4. Step 4: Simplify right side
    47,291.52x = 2,173,616,453.95
  5. Step 5: Solve for x
    x = 2,173,616,453.95/47,291.52
  6. Step 6: Final answer
    x = 45,962.08

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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.