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Finding the Fourth Proportional to 56,780.76, 78,360.08 and 32,914.92

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Solution

The fourth proportional to 56,780.76, 78,360.08 and 32,914.92 is: 45,424.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,780.76 : 78,360.08 = 32,914.92 : x
  2. Step 2: Convert to fraction form
    56,780.76/78,360.08 = 32,914.92/x
  3. Step 3: Cross multiply
    56,780.76x = 78,360.08 × 32,914.92
  4. Step 4: Simplify right side
    56,780.76x = 2,579,215,454.88
  5. Step 5: Solve for x
    x = 2,579,215,454.88/56,780.76
  6. Step 6: Final answer
    x = 45,424.11

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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.