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Finding the Fourth Proportional to 8,624.22, 12,938.25 and 4,726.62

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Solution

The fourth proportional to 8,624.22, 12,938.25 and 4,726.62 is: 7,090.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,624.22 : 12,938.25 = 4,726.62 : x
  2. Step 2: Convert to fraction form
    8,624.22/12,938.25 = 4,726.62/x
  3. Step 3: Cross multiply
    8,624.22x = 12,938.25 × 4,726.62
  4. Step 4: Simplify right side
    8,624.22x = 61,154,191.22
  5. Step 5: Solve for x
    x = 61,154,191.22/8,624.22
  6. Step 6: Final answer
    x = 7,090.98

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.