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Finding the Fourth Proportional to 58,311.96, 87,492.53 and 28,730.04

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Solution

The fourth proportional to 58,311.96, 87,492.53 and 28,730.04 is: 43,107.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,311.96 : 87,492.53 = 28,730.04 : x
  2. Step 2: Convert to fraction form
    58,311.96/87,492.53 = 28,730.04/x
  3. Step 3: Cross multiply
    58,311.96x = 87,492.53 × 28,730.04
  4. Step 4: Simplify right side
    58,311.96x = 2,513,663,886.60
  5. Step 5: Solve for x
    x = 2,513,663,886.60/58,311.96
  6. Step 6: Final answer
    x = 43,107.18

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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.