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Finding the Fourth Proportional to 35,864.60, 53,772.60 and 19,000.40

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Solution

The fourth proportional to 35,864.60, 53,772.60 and 19,000.40 is: 28,487.73

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,864.60 : 53,772.60 = 19,000.40 : x
  2. Step 2: Convert to fraction form
    35,864.60/53,772.60 = 19,000.40/x
  3. Step 3: Cross multiply
    35,864.60x = 53,772.60 × 19,000.40
  4. Step 4: Simplify right side
    35,864.60x = 1,021,700,909.04
  5. Step 5: Solve for x
    x = 1,021,700,909.04/35,864.60
  6. Step 6: Final answer
    x = 28,487.73

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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.