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Finding the Fourth Proportional to 7,012.76, 9,673.30 and 4,775.63

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Solution

The fourth proportional to 7,012.76, 9,673.30 and 4,775.63 is: 6,587.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,012.76 : 9,673.30 = 4,775.63 : x
  2. Step 2: Convert to fraction form
    7,012.76/9,673.30 = 4,775.63/x
  3. Step 3: Cross multiply
    7,012.76x = 9,673.30 × 4,775.63
  4. Step 4: Simplify right side
    7,012.76x = 46,196,113.92
  5. Step 5: Solve for x
    x = 46,196,113.92/7,012.76
  6. Step 6: Final answer
    x = 6,587.44

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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.