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Finding the Fourth Proportional to 35,987.90, 53,981.91 and 11,027.79

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Solution

The fourth proportional to 35,987.90, 53,981.91 and 11,027.79 is: 16,541.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,987.90 : 53,981.91 = 11,027.79 : x
  2. Step 2: Convert to fraction form
    35,987.90/53,981.91 = 11,027.79/x
  3. Step 3: Cross multiply
    35,987.90x = 53,981.91 × 11,027.79
  4. Step 4: Simplify right side
    35,987.90x = 595,301,167.28
  5. Step 5: Solve for x
    x = 595,301,167.28/35,987.90
  6. Step 6: Final answer
    x = 16,541.71

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1.5x scale

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.