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Finding the Fourth Proportional to 28,459.68, 42,623.11 and 22,496.54

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Solution

The fourth proportional to 28,459.68, 42,623.11 and 22,496.54 is: 33,692.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,459.68 : 42,623.11 = 22,496.54 : x
  2. Step 2: Convert to fraction form
    28,459.68/42,623.11 = 22,496.54/x
  3. Step 3: Cross multiply
    28,459.68x = 42,623.11 × 22,496.54
  4. Step 4: Simplify right side
    28,459.68x = 958,872,637.15
  5. Step 5: Solve for x
    x = 958,872,637.15/28,459.68
  6. Step 6: Final answer
    x = 33,692.32

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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.