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Finding the Fourth Proportional to 35,981.60, 53,949.04 and 17,261.20

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Solution

The fourth proportional to 35,981.60, 53,949.04 and 17,261.20 is: 25,880.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,981.60 : 53,949.04 = 17,261.20 : x
  2. Step 2: Convert to fraction form
    35,981.60/53,949.04 = 17,261.20/x
  3. Step 3: Cross multiply
    35,981.60x = 53,949.04 × 17,261.20
  4. Step 4: Simplify right side
    35,981.60x = 931,225,169.25
  5. Step 5: Solve for x
    x = 931,225,169.25/35,981.60
  6. Step 6: Final answer
    x = 25,880.59

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.