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Finding the Fourth Proportional to 7,151.59, 9,873.12 and 4,886.34

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Solution

The fourth proportional to 7,151.59, 9,873.12 and 4,886.34 is: 6,745.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,151.59 : 9,873.12 = 4,886.34 : x
  2. Step 2: Convert to fraction form
    7,151.59/9,873.12 = 4,886.34/x
  3. Step 3: Cross multiply
    7,151.59x = 9,873.12 × 4,886.34
  4. Step 4: Simplify right side
    7,151.59x = 48,243,371.82
  5. Step 5: Solve for x
    x = 48,243,371.82/7,151.59
  6. Step 6: Final answer
    x = 6,745.82

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Half 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.