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Finding the Fourth Proportional to 57,807.33, 79,777.14 and 35,142.63

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Solution

The fourth proportional to 57,807.33, 79,777.14 and 35,142.63 is: 48,498.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,807.33 : 79,777.14 = 35,142.63 : x
  2. Step 2: Convert to fraction form
    57,807.33/79,777.14 = 35,142.63/x
  3. Step 3: Cross multiply
    57,807.33x = 79,777.14 × 35,142.63
  4. Step 4: Simplify right side
    57,807.33x = 2,803,578,513.48
  5. Step 5: Solve for x
    x = 2,803,578,513.48/57,807.33
  6. Step 6: Final answer
    x = 48,498.67

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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.