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Finding the Fourth Proportional to 25,806.60, 35,613.48 and 14,478.60

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Solution

The fourth proportional to 25,806.60, 35,613.48 and 14,478.60 is: 19,980.68

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,806.60 : 35,613.48 = 14,478.60 : x
  2. Step 2: Convert to fraction form
    25,806.60/35,613.48 = 14,478.60/x
  3. Step 3: Cross multiply
    25,806.60x = 35,613.48 × 14,478.60
  4. Step 4: Simplify right side
    25,806.60x = 515,633,331.53
  5. Step 5: Solve for x
    x = 515,633,331.53/25,806.60
  6. Step 6: Final answer
    x = 19,980.68

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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.