Home / 25,153.86-34,712.13-13,668.66

Finding the Fourth Proportional to 25,153.86, 34,712.13 and 13,668.66

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Solution

The fourth proportional to 25,153.86, 34,712.13 and 13,668.66 is: 18,862.64

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,153.86 : 34,712.13 = 13,668.66 : x
  2. Step 2: Convert to fraction form
    25,153.86/34,712.13 = 13,668.66/x
  3. Step 3: Cross multiply
    25,153.86x = 34,712.13 × 13,668.66
  4. Step 4: Simplify right side
    25,153.86x = 474,468,302.85
  5. Step 5: Solve for x
    x = 474,468,302.85/25,153.86
  6. Step 6: Final answer
    x = 18,862.64

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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.