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Finding the Fourth Proportional to 47,063.08, 70,603.26 and 18,983.08

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Solution

The fourth proportional to 47,063.08, 70,603.26 and 18,983.08 is: 28,478.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    47,063.08 : 70,603.26 = 18,983.08 : x
  2. Step 2: Convert to fraction form
    47,063.08/70,603.26 = 18,983.08/x
  3. Step 3: Cross multiply
    47,063.08x = 70,603.26 × 18,983.08
  4. Step 4: Simplify right side
    47,063.08x = 1,340,267,332.84
  5. Step 5: Solve for x
    x = 1,340,267,332.84/47,063.08
  6. Step 6: Final answer
    x = 28,478.10

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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.