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Finding the Fourth Proportional to 56,772.93, 78,346.68 and 32,913.45

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Solution

The fourth proportional to 56,772.93, 78,346.68 and 32,913.45 is: 45,420.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    56,772.93 : 78,346.68 = 32,913.45 : x
  2. Step 2: Convert to fraction form
    56,772.93/78,346.68 = 32,913.45/x
  3. Step 3: Cross multiply
    56,772.93x = 78,346.68 × 32,913.45
  4. Step 4: Simplify right side
    56,772.93x = 2,578,659,534.85
  5. Step 5: Solve for x
    x = 2,578,659,534.85/56,772.93
  6. Step 6: Final answer
    x = 45,420.58

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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.