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Finding the Fourth Proportional to 39,405.58, 54,362.54 and 25,959.58

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Solution

The fourth proportional to 39,405.58, 54,362.54 and 25,959.58 is: 35,812.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,405.58 : 54,362.54 = 25,959.58 : x
  2. Step 2: Convert to fraction form
    39,405.58/54,362.54 = 25,959.58/x
  3. Step 3: Cross multiply
    39,405.58x = 54,362.54 × 25,959.58
  4. Step 4: Simplify right side
    39,405.58x = 1,411,228,706.13
  5. Step 5: Solve for x
    x = 1,411,228,706.13/39,405.58
  6. Step 6: Final answer
    x = 35,812.92

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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.