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Finding the Fourth Proportional to 25,881.60, 35,699.20 and 17,484.80

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Solution

The fourth proportional to 25,881.60, 35,699.20 and 17,484.80 is: 24,117.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,881.60 : 35,699.20 = 17,484.80 : x
  2. Step 2: Convert to fraction form
    25,881.60/35,699.20 = 17,484.80/x
  3. Step 3: Cross multiply
    25,881.60x = 35,699.20 × 17,484.80
  4. Step 4: Simplify right side
    25,881.60x = 624,193,372.16
  5. Step 5: Solve for x
    x = 624,193,372.16/25,881.60
  6. Step 6: Final answer
    x = 24,117.26

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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.