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Finding the Fourth Proportional to 39,321, 54,265.14 and 22,555.08

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Solution

The fourth proportional to 39,321, 54,265.14 and 22,555.08 is: 31,127.25

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,321 : 54,265.14 = 22,555.08 : x
  2. Step 2: Convert to fraction form
    39,321/54,265.14 = 22,555.08/x
  3. Step 3: Cross multiply
    39,321x = 54,265.14 × 22,555.08
  4. Step 4: Simplify right side
    39,321x = 1,223,954,573.91
  5. Step 5: Solve for x
    x = 1,223,954,573.91/39,321
  6. Step 6: Final answer
    x = 31,127.25

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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.