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Finding the Fourth Proportional to 7,484.40, 11,228.40 and 2,804.52

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Solution

The fourth proportional to 7,484.40, 11,228.40 and 2,804.52 is: 4,207.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,484.40 : 11,228.40 = 2,804.52 : x
  2. Step 2: Convert to fraction form
    7,484.40/11,228.40 = 2,804.52/x
  3. Step 3: Cross multiply
    7,484.40x = 11,228.40 × 2,804.52
  4. Step 4: Simplify right side
    7,484.40x = 31,490,272.37
  5. Step 5: Solve for x
    x = 31,490,272.37/7,484.40
  6. Step 6: Final answer
    x = 4,207.45

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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.