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Finding the Fourth Proportional to 3,583.02, 5,374.60 and 985.92

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Solution

The fourth proportional to 3,583.02, 5,374.60 and 985.92 is: 1,478.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,583.02 : 5,374.60 = 985.92 : x
  2. Step 2: Convert to fraction form
    3,583.02/5,374.60 = 985.92/x
  3. Step 3: Cross multiply
    3,583.02x = 5,374.60 × 985.92
  4. Step 4: Simplify right side
    3,583.02x = 5,298,925.63
  5. Step 5: Solve for x
    x = 5,298,925.63/3,583.02
  6. Step 6: Final answer
    x = 1,478.90

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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.