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Finding the Fourth Proportional to 17,920.70, 26,848.65 and 15,847.10

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Solution

The fourth proportional to 17,920.70, 26,848.65 and 15,847.10 is: 23,742.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,920.70 : 26,848.65 = 15,847.10 : x
  2. Step 2: Convert to fraction form
    17,920.70/26,848.65 = 15,847.10/x
  3. Step 3: Cross multiply
    17,920.70x = 26,848.65 × 15,847.10
  4. Step 4: Simplify right side
    17,920.70x = 425,473,241.42
  5. Step 5: Solve for x
    x = 425,473,241.42/17,920.70
  6. Step 6: Final answer
    x = 23,742.00

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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.