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Finding the Fourth Proportional to 75,643.62, 113,432.63 and 25,710.31

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Solution

The fourth proportional to 75,643.62, 113,432.63 and 25,710.31 is: 38,554.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    75,643.62 : 113,432.63 = 25,710.31 : x
  2. Step 2: Convert to fraction form
    75,643.62/113,432.63 = 25,710.31/x
  3. Step 3: Cross multiply
    75,643.62x = 113,432.63 × 25,710.31
  4. Step 4: Simplify right side
    75,643.62x = 2,916,387,669.28
  5. Step 5: Solve for x
    x = 2,916,387,669.28/75,643.62
  6. Step 6: Final answer
    x = 38,554.31

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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.