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Finding the Fourth Proportional to 19,165.61, 28,742.04 and 9,298.60

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Solution

The fourth proportional to 19,165.61, 28,742.04 and 9,298.60 is: 13,944.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,165.61 : 28,742.04 = 9,298.60 : x
  2. Step 2: Convert to fraction form
    19,165.61/28,742.04 = 9,298.60/x
  3. Step 3: Cross multiply
    19,165.61x = 28,742.04 × 9,298.60
  4. Step 4: Simplify right side
    19,165.61x = 267,260,661.29
  5. Step 5: Solve for x
    x = 267,260,661.29/19,165.61
  6. Step 6: Final answer
    x = 13,944.80

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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.