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Finding the Fourth Proportional to 43,503.55, 65,230.18 and 23,215.28

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Solution

The fourth proportional to 43,503.55, 65,230.18 and 23,215.28 is: 34,809.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    43,503.55 : 65,230.18 = 23,215.28 : x
  2. Step 2: Convert to fraction form
    43,503.55/65,230.18 = 23,215.28/x
  3. Step 3: Cross multiply
    43,503.55x = 65,230.18 × 23,215.28
  4. Step 4: Simplify right side
    43,503.55x = 1,514,336,508.96
  5. Step 5: Solve for x
    x = 1,514,336,508.96/43,503.55
  6. Step 6: Final answer
    x = 34,809.49

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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.