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Finding the Fourth Proportional to 12,559.58, 17,332.10 and 6,970.58

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Solution

The fourth proportional to 12,559.58, 17,332.10 and 6,970.58 is: 9,619.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    12,559.58 : 17,332.10 = 6,970.58 : x
  2. Step 2: Convert to fraction form
    12,559.58/17,332.10 = 6,970.58/x
  3. Step 3: Cross multiply
    12,559.58x = 17,332.10 × 6,970.58
  4. Step 4: Simplify right side
    12,559.58x = 120,814,789.62
  5. Step 5: Solve for x
    x = 120,814,789.62/12,559.58
  6. Step 6: Final answer
    x = 9,619.33

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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.