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Finding the Fourth Proportional to 23,656.40, 32,645.64 and 13,046

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Solution

The fourth proportional to 23,656.40, 32,645.64 and 13,046 is: 18,003.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    23,656.40 : 32,645.64 = 13,046 : x
  2. Step 2: Convert to fraction form
    23,656.40/32,645.64 = 13,046/x
  3. Step 3: Cross multiply
    23,656.40x = 32,645.64 × 13,046
  4. Step 4: Simplify right side
    23,656.40x = 425,895,019.44
  5. Step 5: Solve for x
    x = 425,895,019.44/23,656.40
  6. Step 6: Final answer
    x = 18,003.37

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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.