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Finding the Fourth Proportional to 17,070.72, 23,559 and 9,415.49

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Solution

The fourth proportional to 17,070.72, 23,559 and 9,415.49 is: 12,994.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,070.72 : 23,559 = 9,415.49 : x
  2. Step 2: Convert to fraction form
    17,070.72/23,559 = 9,415.49/x
  3. Step 3: Cross multiply
    17,070.72x = 23,559 × 9,415.49
  4. Step 4: Simplify right side
    17,070.72x = 221,819,528.91
  5. Step 5: Solve for x
    x = 221,819,528.91/17,070.72
  6. Step 6: Final answer
    x = 12,994.15

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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.