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Finding the Fourth Proportional to 28,365.88, 42,548.76 and 7,588.84

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Solution

The fourth proportional to 28,365.88, 42,548.76 and 7,588.84 is: 11,383.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    28,365.88 : 42,548.76 = 7,588.84 : x
  2. Step 2: Convert to fraction form
    28,365.88/42,548.76 = 7,588.84/x
  3. Step 3: Cross multiply
    28,365.88x = 42,548.76 × 7,588.84
  4. Step 4: Simplify right side
    28,365.88x = 322,895,731.84
  5. Step 5: Solve for x
    x = 322,895,731.84/28,365.88
  6. Step 6: Final answer
    x = 11,383.24

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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.