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Finding the Fourth Proportional to 39,043.68, 53,880.84 and 22,276.68

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Solution

The fourth proportional to 39,043.68, 53,880.84 and 22,276.68 is: 30,742.14

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,043.68 : 53,880.84 = 22,276.68 : x
  2. Step 2: Convert to fraction form
    39,043.68/53,880.84 = 22,276.68/x
  3. Step 3: Cross multiply
    39,043.68x = 53,880.84 × 22,276.68
  4. Step 4: Simplify right side
    39,043.68x = 1,200,286,230.81
  5. Step 5: Solve for x
    x = 1,200,286,230.81/39,043.68
  6. Step 6: Final answer
    x = 30,742.14

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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.