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Finding the Fourth Proportional to 17,312.42, 23,891.14 and 9,354.64

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Solution

The fourth proportional to 17,312.42, 23,891.14 and 9,354.64 is: 12,909.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,312.42 : 23,891.14 = 9,354.64 : x
  2. Step 2: Convert to fraction form
    17,312.42/23,891.14 = 9,354.64/x
  3. Step 3: Cross multiply
    17,312.42x = 23,891.14 × 9,354.64
  4. Step 4: Simplify right side
    17,312.42x = 223,492,997.50
  5. Step 5: Solve for x
    x = 223,492,997.50/17,312.42
  6. Step 6: Final answer
    x = 12,909.41

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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.