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Finding the Fourth Proportional to 17,916.80, 26,817.60 and 9,575.92

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Solution

The fourth proportional to 17,916.80, 26,817.60 and 9,575.92 is: 14,333.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    17,916.80 : 26,817.60 = 9,575.92 : x
  2. Step 2: Convert to fraction form
    17,916.80/26,817.60 = 9,575.92/x
  3. Step 3: Cross multiply
    17,916.80x = 26,817.60 × 9,575.92
  4. Step 4: Simplify right side
    17,916.80x = 256,803,192.19
  5. Step 5: Solve for x
    x = 256,803,192.19/17,916.80
  6. Step 6: Final answer
    x = 14,333.09

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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.