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Finding the Fourth Proportional to 57,777.48, 79,655.82 and 45,880.20

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Solution

The fourth proportional to 57,777.48, 79,655.82 and 45,880.20 is: 63,253.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,777.48 : 79,655.82 = 45,880.20 : x
  2. Step 2: Convert to fraction form
    57,777.48/79,655.82 = 45,880.20/x
  3. Step 3: Cross multiply
    57,777.48x = 79,655.82 × 45,880.20
  4. Step 4: Simplify right side
    57,777.48x = 3,654,624,952.76
  5. Step 5: Solve for x
    x = 3,654,624,952.76/57,777.48
  6. Step 6: Final answer
    x = 63,253.45

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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.