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Finding the Fourth Proportional to 25,395.86, 35,048.40 and 14,784.86

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Solution

The fourth proportional to 25,395.86, 35,048.40 and 14,784.86 is: 20,404.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,395.86 : 35,048.40 = 14,784.86 : x
  2. Step 2: Convert to fraction form
    25,395.86/35,048.40 = 14,784.86/x
  3. Step 3: Cross multiply
    25,395.86x = 35,048.40 × 14,784.86
  4. Step 4: Simplify right side
    25,395.86x = 518,185,687.22
  5. Step 5: Solve for x
    x = 518,185,687.22/25,395.86
  6. Step 6: Final answer
    x = 20,404.34

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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.