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Finding the Fourth Proportional to 53,111.88, 79,717.08 and 26,835.08

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Solution

The fourth proportional to 53,111.88, 79,717.08 and 26,835.08 is: 40,277.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    53,111.88 : 79,717.08 = 26,835.08 : x
  2. Step 2: Convert to fraction form
    53,111.88/79,717.08 = 26,835.08/x
  3. Step 3: Cross multiply
    53,111.88x = 79,717.08 × 26,835.08
  4. Step 4: Simplify right side
    53,111.88x = 2,139,213,820.58
  5. Step 5: Solve for x
    x = 2,139,213,820.58/53,111.88
  6. Step 6: Final answer
    x = 40,277.50

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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.