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Finding the Fourth Proportional to 9,425.80, 13,011.70 and 7,326.60

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Solution

The fourth proportional to 9,425.80, 13,011.70 and 7,326.60 is: 10,113.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,425.80 : 13,011.70 = 7,326.60 : x
  2. Step 2: Convert to fraction form
    9,425.80/13,011.70 = 7,326.60/x
  3. Step 3: Cross multiply
    9,425.80x = 13,011.70 × 7,326.60
  4. Step 4: Simplify right side
    9,425.80x = 95,331,521.22
  5. Step 5: Solve for x
    x = 95,331,521.22/9,425.80
  6. Step 6: Final answer
    x = 10,113.89

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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.