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Finding the Fourth Proportional to 6,461.94, 8,918.94 and 4,448.04

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Solution

The fourth proportional to 6,461.94, 8,918.94 and 4,448.04 is: 6,139.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,461.94 : 8,918.94 = 4,448.04 : x
  2. Step 2: Convert to fraction form
    6,461.94/8,918.94 = 4,448.04/x
  3. Step 3: Cross multiply
    6,461.94x = 8,918.94 × 4,448.04
  4. Step 4: Simplify right side
    6,461.94x = 39,671,801.88
  5. Step 5: Solve for x
    x = 39,671,801.88/6,461.94
  6. Step 6: Final answer
    x = 6,139.30

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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.