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Finding the Fourth Proportional to 22,995.20, 34,492.80 and 21,459.20

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Solution

The fourth proportional to 22,995.20, 34,492.80 and 21,459.20 is: 32,188.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    22,995.20 : 34,492.80 = 21,459.20 : x
  2. Step 2: Convert to fraction form
    22,995.20/34,492.80 = 21,459.20/x
  3. Step 3: Cross multiply
    22,995.20x = 34,492.80 × 21,459.20
  4. Step 4: Simplify right side
    22,995.20x = 740,187,893.76
  5. Step 5: Solve for x
    x = 740,187,893.76/22,995.20
  6. Step 6: Final answer
    x = 32,188.80

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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.