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Finding the Fourth Proportional to 7,010.51, 9,668.21 and 5,515.74

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Solution

The fourth proportional to 7,010.51, 9,668.21 and 5,515.74 is: 7,606.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,010.51 : 9,668.21 = 5,515.74 : x
  2. Step 2: Convert to fraction form
    7,010.51/9,668.21 = 5,515.74/x
  3. Step 3: Cross multiply
    7,010.51x = 9,668.21 × 5,515.74
  4. Step 4: Simplify right side
    7,010.51x = 53,327,305.05
  5. Step 5: Solve for x
    x = 53,327,305.05/7,010.51
  6. Step 6: Final answer
    x = 7,606.77

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Half scale
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Double scale
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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.