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Finding the Fourth Proportional to 18,312.57, 27,468.65 and 4,461.57

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Solution

The fourth proportional to 18,312.57, 27,468.65 and 4,461.57 is: 6,692.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,312.57 : 27,468.65 = 4,461.57 : x
  2. Step 2: Convert to fraction form
    18,312.57/27,468.65 = 4,461.57/x
  3. Step 3: Cross multiply
    18,312.57x = 27,468.65 × 4,461.57
  4. Step 4: Simplify right side
    18,312.57x = 122,553,315.93
  5. Step 5: Solve for x
    x = 122,553,315.93/18,312.57
  6. Step 6: Final answer
    x = 6,692.31

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1.5x scale

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.