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Finding the Fourth Proportional to 56,710.75, 78,260.88 and 32,838.70

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Solution

The fourth proportional to 56,710.75, 78,260.88 and 32,838.70 is: 45,317.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,710.75 : 78,260.88 = 32,838.70 : x
  2. Step 2: Convert to fraction form
    56,710.75/78,260.88 = 32,838.70/x
  3. Step 3: Cross multiply
    56,710.75x = 78,260.88 × 32,838.70
  4. Step 4: Simplify right side
    56,710.75x = 2,569,985,560.06
  5. Step 5: Solve for x
    x = 2,569,985,560.06/56,710.75
  6. Step 6: Final answer
    x = 45,317.43

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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.