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Finding the Fourth Proportional to 29,585.76, 40,809.60 and 22,496.64

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Solution

The fourth proportional to 29,585.76, 40,809.60 and 22,496.64 is: 31,031.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    29,585.76 : 40,809.60 = 22,496.64 : x
  2. Step 2: Convert to fraction form
    29,585.76/40,809.60 = 22,496.64/x
  3. Step 3: Cross multiply
    29,585.76x = 40,809.60 × 22,496.64
  4. Step 4: Simplify right side
    29,585.76x = 918,078,879.74
  5. Step 5: Solve for x
    x = 918,078,879.74/29,585.76
  6. Step 6: Final answer
    x = 31,031.11

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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.