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Finding the Fourth Proportional to 12,369.58, 17,070.36 and 7,064.29

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Solution

The fourth proportional to 12,369.58, 17,070.36 and 7,064.29 is: 9,748.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,369.58 : 17,070.36 = 7,064.29 : x
  2. Step 2: Convert to fraction form
    12,369.58/17,070.36 = 7,064.29/x
  3. Step 3: Cross multiply
    12,369.58x = 17,070.36 × 7,064.29
  4. Step 4: Simplify right side
    12,369.58x = 120,589,973.44
  5. Step 5: Solve for x
    x = 120,589,973.44/12,369.58
  6. Step 6: Final answer
    x = 9,748.91

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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.