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Finding the Fourth Proportional to 78,597.88, 117,916.24 and 26,012.68

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Solution

The fourth proportional to 78,597.88, 117,916.24 and 26,012.68 is: 39,025.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    78,597.88 : 117,916.24 = 26,012.68 : x
  2. Step 2: Convert to fraction form
    78,597.88/117,916.24 = 26,012.68/x
  3. Step 3: Cross multiply
    78,597.88x = 117,916.24 × 26,012.68
  4. Step 4: Simplify right side
    78,597.88x = 3,067,317,417.92
  5. Step 5: Solve for x
    x = 3,067,317,417.92/78,597.88
  6. Step 6: Final answer
    x = 39,025.45

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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.