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Finding the Fourth Proportional to 55,998, 83,998.62 and 14,445

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Solution

The fourth proportional to 55,998, 83,998.62 and 14,445 is: 21,667.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    55,998 : 83,998.62 = 14,445 : x
  2. Step 2: Convert to fraction form
    55,998/83,998.62 = 14,445/x
  3. Step 3: Cross multiply
    55,998x = 83,998.62 × 14,445
  4. Step 4: Simplify right side
    55,998x = 1,213,360,065.90
  5. Step 5: Solve for x
    x = 1,213,360,065.90/55,998
  6. Step 6: Final answer
    x = 21,667.92

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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.