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Finding the Fourth Proportional to 59,776.79, 89,623.26 and 26,478.77

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Solution

The fourth proportional to 59,776.79, 89,623.26 and 26,478.77 is: 39,699.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    59,776.79 : 89,623.26 = 26,478.77 : x
  2. Step 2: Convert to fraction form
    59,776.79/89,623.26 = 26,478.77/x
  3. Step 3: Cross multiply
    59,776.79x = 89,623.26 × 26,478.77
  4. Step 4: Simplify right side
    59,776.79x = 2,373,113,240.07
  5. Step 5: Solve for x
    x = 2,373,113,240.07/59,776.79
  6. Step 6: Final answer
    x = 39,699.58

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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.