Home / 25,665.12-35,416.20-14,909.04

Finding the Fourth Proportional to 25,665.12, 35,416.20 and 14,909.04

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Solution

The fourth proportional to 25,665.12, 35,416.20 and 14,909.04 is: 20,573.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,665.12 : 35,416.20 = 14,909.04 : x
  2. Step 2: Convert to fraction form
    25,665.12/35,416.20 = 14,909.04/x
  3. Step 3: Cross multiply
    25,665.12x = 35,416.20 × 14,909.04
  4. Step 4: Simplify right side
    25,665.12x = 528,021,542.45
  5. Step 5: Solve for x
    x = 528,021,542.45/25,665.12
  6. Step 6: Final answer
    x = 20,573.51

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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.