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Finding the Fourth Proportional to 12,692.52, 19,035.09 and 4,899.51

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Solution

The fourth proportional to 12,692.52, 19,035.09 and 4,899.51 is: 7,347.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,692.52 : 19,035.09 = 4,899.51 : x
  2. Step 2: Convert to fraction form
    12,692.52/19,035.09 = 4,899.51/x
  3. Step 3: Cross multiply
    12,692.52x = 19,035.09 × 4,899.51
  4. Step 4: Simplify right side
    12,692.52x = 93,262,613.81
  5. Step 5: Solve for x
    x = 93,262,613.81/12,692.52
  6. Step 6: Final answer
    x = 7,347.84

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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.