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Finding the Fourth Proportional to 11,673.60, 17,553.60 and 9,772.80

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Solution

The fourth proportional to 11,673.60, 17,553.60 and 9,772.80 is: 14,695.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    11,673.60 : 17,553.60 = 9,772.80 : x
  2. Step 2: Convert to fraction form
    11,673.60/17,553.60 = 9,772.80/x
  3. Step 3: Cross multiply
    11,673.60x = 17,553.60 × 9,772.80
  4. Step 4: Simplify right side
    11,673.60x = 171,547,822.08
  5. Step 5: Solve for x
    x = 171,547,822.08/11,673.60
  6. Step 6: Final answer
    x = 14,695.37

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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.