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Finding the Fourth Proportional to 58,600.96, 87,856 and 28,998.40

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Solution

The fourth proportional to 58,600.96, 87,856 and 28,998.40 is: 43,475.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,600.96 : 87,856 = 28,998.40 : x
  2. Step 2: Convert to fraction form
    58,600.96/87,856 = 28,998.40/x
  3. Step 3: Cross multiply
    58,600.96x = 87,856 × 28,998.40
  4. Step 4: Simplify right side
    58,600.96x = 2,547,683,430.40
  5. Step 5: Solve for x
    x = 2,547,683,430.40/58,600.96
  6. Step 6: Final answer
    x = 43,475.11

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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.