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Finding the Fourth Proportional to 8,692.51, 13,038.63 and 3,498.25

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Solution

The fourth proportional to 8,692.51, 13,038.63 and 3,498.25 is: 5,247.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,692.51 : 13,038.63 = 3,498.25 : x
  2. Step 2: Convert to fraction form
    8,692.51/13,038.63 = 3,498.25/x
  3. Step 3: Cross multiply
    8,692.51x = 13,038.63 × 3,498.25
  4. Step 4: Simplify right side
    8,692.51x = 45,612,387.40
  5. Step 5: Solve for x
    x = 45,612,387.40/8,692.51
  6. Step 6: Final answer
    x = 5,247.32

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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.