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Finding the Fourth Proportional to 39,477.25, 54,478.61 and 22,710.25

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Solution

The fourth proportional to 39,477.25, 54,478.61 and 22,710.25 is: 31,340.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    39,477.25 : 54,478.61 = 22,710.25 : x
  2. Step 2: Convert to fraction form
    39,477.25/54,478.61 = 22,710.25/x
  3. Step 3: Cross multiply
    39,477.25x = 54,478.61 × 22,710.25
  4. Step 4: Simplify right side
    39,477.25x = 1,237,222,852.75
  5. Step 5: Solve for x
    x = 1,237,222,852.75/39,477.25
  6. Step 6: Final answer
    x = 31,340.15

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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.