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Finding the Fourth Proportional to 7,903.61, 11,855.43 and 2,357.51

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Solution

The fourth proportional to 7,903.61, 11,855.43 and 2,357.51 is: 3,536.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,903.61 : 11,855.43 = 2,357.51 : x
  2. Step 2: Convert to fraction form
    7,903.61/11,855.43 = 2,357.51/x
  3. Step 3: Cross multiply
    7,903.61x = 11,855.43 × 2,357.51
  4. Step 4: Simplify right side
    7,903.61x = 27,949,235.50
  5. Step 5: Solve for x
    x = 27,949,235.50/7,903.61
  6. Step 6: Final answer
    x = 3,536.26

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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.