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Finding the Fourth Proportional to 52,668.28, 79,034.80 and 47,746.72

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Solution

The fourth proportional to 52,668.28, 79,034.80 and 47,746.72 is: 71,649.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,668.28 : 79,034.80 = 47,746.72 : x
  2. Step 2: Convert to fraction form
    52,668.28/79,034.80 = 47,746.72/x
  3. Step 3: Cross multiply
    52,668.28x = 79,034.80 × 47,746.72
  4. Step 4: Simplify right side
    52,668.28x = 3,773,652,465.86
  5. Step 5: Solve for x
    x = 3,773,652,465.86/52,668.28
  6. Step 6: Final answer
    x = 71,649.43

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.