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Finding the Fourth Proportional to 23,165.76, 34,748.64 and 12,646.30

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Solution

The fourth proportional to 23,165.76, 34,748.64 and 12,646.30 is: 18,969.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,165.76 : 34,748.64 = 12,646.30 : x
  2. Step 2: Convert to fraction form
    23,165.76/34,748.64 = 12,646.30/x
  3. Step 3: Cross multiply
    23,165.76x = 34,748.64 × 12,646.30
  4. Step 4: Simplify right side
    23,165.76x = 439,441,726.03
  5. Step 5: Solve for x
    x = 439,441,726.03/23,165.76
  6. Step 6: Final answer
    x = 18,969.45

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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.