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Finding the Fourth Proportional to 58,126.88, 80,239.47 and 39,289.52

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Solution

The fourth proportional to 58,126.88, 80,239.47 and 39,289.52 is: 54,236.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    58,126.88 : 80,239.47 = 39,289.52 : x
  2. Step 2: Convert to fraction form
    58,126.88/80,239.47 = 39,289.52/x
  3. Step 3: Cross multiply
    58,126.88x = 80,239.47 × 39,289.52
  4. Step 4: Simplify right side
    58,126.88x = 3,152,570,261.35
  5. Step 5: Solve for x
    x = 3,152,570,261.35/58,126.88
  6. Step 6: Final answer
    x = 54,236.01

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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.