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Finding the Fourth Proportional to 8,535.68, 12,803.84 and 2,692.32

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Solution

The fourth proportional to 8,535.68, 12,803.84 and 2,692.32 is: 4,038.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,535.68 : 12,803.84 = 2,692.32 : x
  2. Step 2: Convert to fraction form
    8,535.68/12,803.84 = 2,692.32/x
  3. Step 3: Cross multiply
    8,535.68x = 12,803.84 × 2,692.32
  4. Step 4: Simplify right side
    8,535.68x = 34,472,034.51
  5. Step 5: Solve for x
    x = 34,472,034.51/8,535.68
  6. Step 6: Final answer
    x = 4,038.58

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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.