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Finding the Fourth Proportional to 29,215.35, 40,320.90 and 19,152.27

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Solution

The fourth proportional to 29,215.35, 40,320.90 and 19,152.27 is: 26,432.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,215.35 : 40,320.90 = 19,152.27 : x
  2. Step 2: Convert to fraction form
    29,215.35/40,320.90 = 19,152.27/x
  3. Step 3: Cross multiply
    29,215.35x = 40,320.90 × 19,152.27
  4. Step 4: Simplify right side
    29,215.35x = 772,236,763.44
  5. Step 5: Solve for x
    x = 772,236,763.44/29,215.35
  6. Step 6: Final answer
    x = 26,432.57

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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.