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Finding the Fourth Proportional to 56,901.90, 78,512.90 and 32,698.19

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Solution

The fourth proportional to 56,901.90, 78,512.90 and 32,698.19 is: 45,116.76

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,901.90 : 78,512.90 = 32,698.19 : x
  2. Step 2: Convert to fraction form
    56,901.90/78,512.90 = 32,698.19/x
  3. Step 3: Cross multiply
    56,901.90x = 78,512.90 × 32,698.19
  4. Step 4: Simplify right side
    56,901.90x = 2,567,229,165.60
  5. Step 5: Solve for x
    x = 2,567,229,165.60/56,901.90
  6. Step 6: Final answer
    x = 45,116.76

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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.