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Finding the Fourth Proportional to 9,994.69, 13,785.51 and 7,011.19

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Solution

The fourth proportional to 9,994.69, 13,785.51 and 7,011.19 is: 9,670.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,994.69 : 13,785.51 = 7,011.19 : x
  2. Step 2: Convert to fraction form
    9,994.69/13,785.51 = 7,011.19/x
  3. Step 3: Cross multiply
    9,994.69x = 13,785.51 × 7,011.19
  4. Step 4: Simplify right side
    9,994.69x = 96,652,829.86
  5. Step 5: Solve for x
    x = 96,652,829.86/9,994.69
  6. Step 6: Final answer
    x = 9,670.42

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Half scale
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Double scale
Find fourth proportional to 9,995.69, 13,786.89 and 7,012.19
Similar ratio
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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.