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Finding the Fourth Proportional to 58,643.60, 87,964.64 and 14,270.38

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Solution

The fourth proportional to 58,643.60, 87,964.64 and 14,270.38 is: 21,405.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,643.60 : 87,964.64 = 14,270.38 : x
  2. Step 2: Convert to fraction form
    58,643.60/87,964.64 = 14,270.38/x
  3. Step 3: Cross multiply
    58,643.60x = 87,964.64 × 14,270.38
  4. Step 4: Simplify right side
    58,643.60x = 1,255,288,839.36
  5. Step 5: Solve for x
    x = 1,255,288,839.36/58,643.60
  6. Step 6: Final answer
    x = 21,405.39

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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.