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Finding the Fourth Proportional to 35,874.63, 53,737.83 and 21,038.87

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Solution

The fourth proportional to 35,874.63, 53,737.83 and 21,038.87 is: 31,514.84

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,874.63 : 53,737.83 = 21,038.87 : x
  2. Step 2: Convert to fraction form
    35,874.63/53,737.83 = 21,038.87/x
  3. Step 3: Cross multiply
    35,874.63x = 53,737.83 × 21,038.87
  4. Step 4: Simplify right side
    35,874.63x = 1,130,583,219.45
  5. Step 5: Solve for x
    x = 1,130,583,219.45/35,874.63
  6. Step 6: Final answer
    x = 31,514.84

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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.