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Finding the Fourth Proportional to 56,899.48, 78,476.92 and 36,483.48

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Solution

The fourth proportional to 56,899.48, 78,476.92 and 36,483.48 is: 50,318.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,899.48 : 78,476.92 = 36,483.48 : x
  2. Step 2: Convert to fraction form
    56,899.48/78,476.92 = 36,483.48/x
  3. Step 3: Cross multiply
    56,899.48x = 78,476.92 × 36,483.48
  4. Step 4: Simplify right side
    56,899.48x = 2,863,111,141.28
  5. Step 5: Solve for x
    x = 2,863,111,141.28/56,899.48
  6. Step 6: Final answer
    x = 50,318.76

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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.