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Finding the Fourth Proportional to 56,762.75, 78,335.03 and 31,612.25

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Solution

The fourth proportional to 56,762.75, 78,335.03 and 31,612.25 is: 43,626.26

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,762.75 : 78,335.03 = 31,612.25 : x
  2. Step 2: Convert to fraction form
    56,762.75/78,335.03 = 31,612.25/x
  3. Step 3: Cross multiply
    56,762.75x = 78,335.03 × 31,612.25
  4. Step 4: Simplify right side
    56,762.75x = 2,476,346,394.06
  5. Step 5: Solve for x
    x = 2,476,346,394.06/56,762.75
  6. Step 6: Final answer
    x = 43,626.26

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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.