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Finding the Fourth Proportional to 25,550.64, 35,259.48 and 14,220

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Solution

The fourth proportional to 25,550.64, 35,259.48 and 14,220 is: 19,623.38

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,550.64 : 35,259.48 = 14,220 : x
  2. Step 2: Convert to fraction form
    25,550.64/35,259.48 = 14,220/x
  3. Step 3: Cross multiply
    25,550.64x = 35,259.48 × 14,220
  4. Step 4: Simplify right side
    25,550.64x = 501,389,805.60
  5. Step 5: Solve for x
    x = 501,389,805.60/25,550.64
  6. Step 6: Final answer
    x = 19,623.38

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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.