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Finding the Fourth Proportional to 56,473.92, 84,689.28 and 19,023.84

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Solution

The fourth proportional to 56,473.92, 84,689.28 and 19,023.84 is: 28,528.48

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,473.92 : 84,689.28 = 19,023.84 : x
  2. Step 2: Convert to fraction form
    56,473.92/84,689.28 = 19,023.84/x
  3. Step 3: Cross multiply
    56,473.92x = 84,689.28 × 19,023.84
  4. Step 4: Simplify right side
    56,473.92x = 1,611,115,312.44
  5. Step 5: Solve for x
    x = 1,611,115,312.44/56,473.92
  6. Step 6: Final answer
    x = 28,528.48

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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.