Home / 25,087.86-34,620.48-13,756.77

Finding the Fourth Proportional to 25,087.86, 34,620.48 and 13,756.77

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Solution

The fourth proportional to 25,087.86, 34,620.48 and 13,756.77 is: 18,983.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,087.86 : 34,620.48 = 13,756.77 : x
  2. Step 2: Convert to fraction form
    25,087.86/34,620.48 = 13,756.77/x
  3. Step 3: Cross multiply
    25,087.86x = 34,620.48 × 13,756.77
  4. Step 4: Simplify right side
    25,087.86x = 476,265,980.65
  5. Step 5: Solve for x
    x = 476,265,980.65/25,087.86
  6. Step 6: Final answer
    x = 18,983.92

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.