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Finding the Fourth Proportional to 32,471.80, 44,795.70 and 21,137.16

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Solution

The fourth proportional to 32,471.80, 44,795.70 and 21,137.16 is: 29,159.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    32,471.80 : 44,795.70 = 21,137.16 : x
  2. Step 2: Convert to fraction form
    32,471.80/44,795.70 = 21,137.16/x
  3. Step 3: Cross multiply
    32,471.80x = 44,795.70 × 21,137.16
  4. Step 4: Simplify right side
    32,471.80x = 946,853,878.21
  5. Step 5: Solve for x
    x = 946,853,878.21/32,471.80
  6. Step 6: Final answer
    x = 29,159.27

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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.