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Finding the Fourth Proportional to 8,407.56, 11,602.63 and 4,630.85

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Solution

The fourth proportional to 8,407.56, 11,602.63 and 4,630.85 is: 6,390.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,407.56 : 11,602.63 = 4,630.85 : x
  2. Step 2: Convert to fraction form
    8,407.56/11,602.63 = 4,630.85/x
  3. Step 3: Cross multiply
    8,407.56x = 11,602.63 × 4,630.85
  4. Step 4: Simplify right side
    8,407.56x = 53,730,010.81
  5. Step 5: Solve for x
    x = 53,730,010.81/8,407.56
  6. Step 6: Final answer
    x = 6,390.68

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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.