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Finding the Fourth Proportional to 3,661.61, 5,492.42 and 888.26

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Solution

The fourth proportional to 3,661.61, 5,492.42 and 888.26 is: 1,332.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,661.61 : 5,492.42 = 888.26 : x
  2. Step 2: Convert to fraction form
    3,661.61/5,492.42 = 888.26/x
  3. Step 3: Cross multiply
    3,661.61x = 5,492.42 × 888.26
  4. Step 4: Simplify right side
    3,661.61x = 4,878,699.31
  5. Step 5: Solve for x
    x = 4,878,699.31/3,661.61
  6. Step 6: Final answer
    x = 1,332.39

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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.