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Finding the Fourth Proportional to 16,897.40, 23,318.28 and 9,445.40

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Solution

The fourth proportional to 16,897.40, 23,318.28 and 9,445.40 is: 13,034.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,897.40 : 23,318.28 = 9,445.40 : x
  2. Step 2: Convert to fraction form
    16,897.40/23,318.28 = 9,445.40/x
  3. Step 3: Cross multiply
    16,897.40x = 23,318.28 × 9,445.40
  4. Step 4: Simplify right side
    16,897.40x = 220,250,481.91
  5. Step 5: Solve for x
    x = 220,250,481.91/16,897.40
  6. Step 6: Final answer
    x = 13,034.58

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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.