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Finding the Fourth Proportional to 8,130.99, 11,221.80 and 4,594.13

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Solution

The fourth proportional to 8,130.99, 11,221.80 and 4,594.13 is: 6,340.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,130.99 : 11,221.80 = 4,594.13 : x
  2. Step 2: Convert to fraction form
    8,130.99/11,221.80 = 4,594.13/x
  3. Step 3: Cross multiply
    8,130.99x = 11,221.80 × 4,594.13
  4. Step 4: Simplify right side
    8,130.99x = 51,554,351.93
  5. Step 5: Solve for x
    x = 51,554,351.93/8,130.99
  6. Step 6: Final answer
    x = 6,340.48

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Half scale
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Double scale
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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.