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Finding the Fourth Proportional to 56,524.31, 78,003.86 and 35,315.88

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Solution

The fourth proportional to 56,524.31, 78,003.86 and 35,315.88 is: 48,736.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,524.31 : 78,003.86 = 35,315.88 : x
  2. Step 2: Convert to fraction form
    56,524.31/78,003.86 = 35,315.88/x
  3. Step 3: Cross multiply
    56,524.31x = 78,003.86 × 35,315.88
  4. Step 4: Simplify right side
    56,524.31x = 2,754,774,782.72
  5. Step 5: Solve for x
    x = 2,754,774,782.72/56,524.31
  6. Step 6: Final answer
    x = 48,736.10

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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.