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Finding the Fourth Proportional to 57,602.76, 79,514.10 and 45,031.56

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Solution

The fourth proportional to 57,602.76, 79,514.10 and 45,031.56 is: 62,160.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    57,602.76 : 79,514.10 = 45,031.56 : x
  2. Step 2: Convert to fraction form
    57,602.76/79,514.10 = 45,031.56/x
  3. Step 3: Cross multiply
    57,602.76x = 79,514.10 × 45,031.56
  4. Step 4: Simplify right side
    57,602.76x = 3,580,643,965.00
  5. Step 5: Solve for x
    x = 3,580,643,965.00/57,602.76
  6. Step 6: Final answer
    x = 62,160.98

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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.