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Finding the Fourth Proportional to 58,483.64, 87,705.60 and 19,031

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Solution

The fourth proportional to 58,483.64, 87,705.60 and 19,031 is: 28,540.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,483.64 : 87,705.60 = 19,031 : x
  2. Step 2: Convert to fraction form
    58,483.64/87,705.60 = 19,031/x
  3. Step 3: Cross multiply
    58,483.64x = 87,705.60 × 19,031
  4. Step 4: Simplify right side
    58,483.64x = 1,669,125,273.60
  5. Step 5: Solve for x
    x = 1,669,125,273.60/58,483.64
  6. Step 6: Final answer
    x = 28,540.04

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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.