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Finding the Fourth Proportional to 56,772.79, 78,346.47 and 32,913.33

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Solution

The fourth proportional to 56,772.79, 78,346.47 and 32,913.33 is: 45,420.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,772.79 : 78,346.47 = 32,913.33 : x
  2. Step 2: Convert to fraction form
    56,772.79/78,346.47 = 32,913.33/x
  3. Step 3: Cross multiply
    56,772.79x = 78,346.47 × 32,913.33
  4. Step 4: Simplify right side
    56,772.79x = 2,578,643,221.45
  5. Step 5: Solve for x
    x = 2,578,643,221.45/56,772.79
  6. Step 6: Final answer
    x = 45,420.41

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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.