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Finding the Fourth Proportional to 15,765.04, 23,654.80 and 5,905.12

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Solution

The fourth proportional to 15,765.04, 23,654.80 and 5,905.12 is: 8,860.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,765.04 : 23,654.80 = 5,905.12 : x
  2. Step 2: Convert to fraction form
    15,765.04/23,654.80 = 5,905.12/x
  3. Step 3: Cross multiply
    15,765.04x = 23,654.80 × 5,905.12
  4. Step 4: Simplify right side
    15,765.04x = 139,684,432.58
  5. Step 5: Solve for x
    x = 139,684,432.58/15,765.04
  6. Step 6: Final answer
    x = 8,860.39

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1.5x scale

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.