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Finding the Fourth Proportional to 8,468.95, 11,686.84 and 4,692.28

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Solution

The fourth proportional to 8,468.95, 11,686.84 and 4,692.28 is: 6,475.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,468.95 : 11,686.84 = 4,692.28 : x
  2. Step 2: Convert to fraction form
    8,468.95/11,686.84 = 4,692.28/x
  3. Step 3: Cross multiply
    8,468.95x = 11,686.84 × 4,692.28
  4. Step 4: Simplify right side
    8,468.95x = 54,837,925.60
  5. Step 5: Solve for x
    x = 54,837,925.60/8,468.95
  6. Step 6: Final answer
    x = 6,475.17

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.