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Finding the Fourth Proportional to 58,464.90, 87,711.75 and 16,916.10

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Solution

The fourth proportional to 58,464.90, 87,711.75 and 16,916.10 is: 25,378.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,464.90 : 87,711.75 = 16,916.10 : x
  2. Step 2: Convert to fraction form
    58,464.90/87,711.75 = 16,916.10/x
  3. Step 3: Cross multiply
    58,464.90x = 87,711.75 × 16,916.10
  4. Step 4: Simplify right side
    58,464.90x = 1,483,740,734.18
  5. Step 5: Solve for x
    x = 1,483,740,734.18/58,464.90
  6. Step 6: Final answer
    x = 25,378.32

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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.