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Finding the Fourth Proportional to 25,973.80, 38,957.82 and 7,505.80

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Solution

The fourth proportional to 25,973.80, 38,957.82 and 7,505.80 is: 11,257.87

Step by Step Solution

  1. Step 1: Write the proportion equation
    25,973.80 : 38,957.82 = 7,505.80 : x
  2. Step 2: Convert to fraction form
    25,973.80/38,957.82 = 7,505.80/x
  3. Step 3: Cross multiply
    25,973.80x = 38,957.82 × 7,505.80
  4. Step 4: Simplify right side
    25,973.80x = 292,409,605.36
  5. Step 5: Solve for x
    x = 292,409,605.36/25,973.80
  6. Step 6: Final answer
    x = 11,257.87

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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.