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Finding the Fourth Proportional to 7,619.03, 11,412.14 and 4,840.86

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Solution

The fourth proportional to 7,619.03, 11,412.14 and 4,840.86 is: 7,250.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,619.03 : 11,412.14 = 4,840.86 : x
  2. Step 2: Convert to fraction form
    7,619.03/11,412.14 = 4,840.86/x
  3. Step 3: Cross multiply
    7,619.03x = 11,412.14 × 4,840.86
  4. Step 4: Simplify right side
    7,619.03x = 55,244,547.84
  5. Step 5: Solve for x
    x = 55,244,547.84/7,619.03
  6. Step 6: Final answer
    x = 7,250.87

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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.