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Finding the Fourth Proportional to 17,574.60, 24,287.94 and 13,113.12

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Solution

The fourth proportional to 17,574.60, 24,287.94 and 13,113.12 is: 18,122.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,574.60 : 24,287.94 = 13,113.12 : x
  2. Step 2: Convert to fraction form
    17,574.60/24,287.94 = 13,113.12/x
  3. Step 3: Cross multiply
    17,574.60x = 24,287.94 × 13,113.12
  4. Step 4: Simplify right side
    17,574.60x = 318,490,671.77
  5. Step 5: Solve for x
    x = 318,490,671.77/17,574.60
  6. Step 6: Final answer
    x = 18,122.21

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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.