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Finding the Fourth Proportional to 7,635.84, 10,538.88 and 4,448.88

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Solution

The fourth proportional to 7,635.84, 10,538.88 and 4,448.88 is: 6,140.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,635.84 : 10,538.88 = 4,448.88 : x
  2. Step 2: Convert to fraction form
    7,635.84/10,538.88 = 4,448.88/x
  3. Step 3: Cross multiply
    7,635.84x = 10,538.88 × 4,448.88
  4. Step 4: Simplify right side
    7,635.84x = 46,886,212.45
  5. Step 5: Solve for x
    x = 46,886,212.45/7,635.84
  6. Step 6: Final answer
    x = 6,140.28

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.