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Finding the Fourth Proportional to 46,981.70, 70,465.72 and 13,692.83

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Solution

The fourth proportional to 46,981.70, 70,465.72 and 13,692.83 is: 20,537.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,981.70 : 70,465.72 = 13,692.83 : x
  2. Step 2: Convert to fraction form
    46,981.70/70,465.72 = 13,692.83/x
  3. Step 3: Cross multiply
    46,981.70x = 70,465.72 × 13,692.83
  4. Step 4: Simplify right side
    46,981.70x = 964,875,198.78
  5. Step 5: Solve for x
    x = 964,875,198.78/46,981.70
  6. Step 6: Final answer
    x = 20,537.25

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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.