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Finding the Fourth Proportional to 58,643.64, 87,990.06 and 25,346.57

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Solution

The fourth proportional to 58,643.64, 87,990.06 and 25,346.57 is: 38,030.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,643.64 : 87,990.06 = 25,346.57 : x
  2. Step 2: Convert to fraction form
    58,643.64/87,990.06 = 25,346.57/x
  3. Step 3: Cross multiply
    58,643.64x = 87,990.06 × 25,346.57
  4. Step 4: Simplify right side
    58,643.64x = 2,230,245,775.14
  5. Step 5: Solve for x
    x = 2,230,245,775.14/58,643.64
  6. Step 6: Final answer
    x = 38,030.48

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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.