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Finding the Fourth Proportional to 19,457.61, 29,025.19 and 18,884.04

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Solution

The fourth proportional to 19,457.61, 29,025.19 and 18,884.04 is: 28,169.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,457.61 : 29,025.19 = 18,884.04 : x
  2. Step 2: Convert to fraction form
    19,457.61/29,025.19 = 18,884.04/x
  3. Step 3: Cross multiply
    19,457.61x = 29,025.19 × 18,884.04
  4. Step 4: Simplify right side
    19,457.61x = 548,112,848.97
  5. Step 5: Solve for x
    x = 548,112,848.97/19,457.61
  6. Step 6: Final answer
    x = 28,169.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.