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Finding the Fourth Proportional to 3,651.92, 5,477.80 and 1,055.08

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Solution

The fourth proportional to 3,651.92, 5,477.80 and 1,055.08 is: 1,582.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    3,651.92 : 5,477.80 = 1,055.08 : x
  2. Step 2: Convert to fraction form
    3,651.92/5,477.80 = 1,055.08/x
  3. Step 3: Cross multiply
    3,651.92x = 5,477.80 × 1,055.08
  4. Step 4: Simplify right side
    3,651.92x = 5,779,517.22
  5. Step 5: Solve for x
    x = 5,779,517.22/3,651.92
  6. Step 6: Final answer
    x = 1,582.60

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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.