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Finding the Fourth Proportional to 56,521.52, 78,007.84 and 33,861.48

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Solution

The fourth proportional to 56,521.52, 78,007.84 and 33,861.48 is: 46,733.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,521.52 : 78,007.84 = 33,861.48 : x
  2. Step 2: Convert to fraction form
    56,521.52/78,007.84 = 33,861.48/x
  3. Step 3: Cross multiply
    56,521.52x = 78,007.84 × 33,861.48
  4. Step 4: Simplify right side
    56,521.52x = 2,641,460,914.00
  5. Step 5: Solve for x
    x = 2,641,460,914.00/56,521.52
  6. Step 6: Final answer
    x = 46,733.72

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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.