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Finding the Fourth Proportional to 35,970.80, 53,956.20 and 27,222.80

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Solution

The fourth proportional to 35,970.80, 53,956.20 and 27,222.80 is: 40,834.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,970.80 : 53,956.20 = 27,222.80 : x
  2. Step 2: Convert to fraction form
    35,970.80/53,956.20 = 27,222.80/x
  3. Step 3: Cross multiply
    35,970.80x = 53,956.20 × 27,222.80
  4. Step 4: Simplify right side
    35,970.80x = 1,468,838,841.36
  5. Step 5: Solve for x
    x = 1,468,838,841.36/35,970.80
  6. Step 6: Final answer
    x = 40,834.20

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Similar ratio
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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.