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Finding the Fourth Proportional to 52,620.60, 72,614.16 and 28,746.12

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Solution

The fourth proportional to 52,620.60, 72,614.16 and 28,746.12 is: 39,668.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,620.60 : 72,614.16 = 28,746.12 : x
  2. Step 2: Convert to fraction form
    52,620.60/72,614.16 = 28,746.12/x
  3. Step 3: Cross multiply
    52,620.60x = 72,614.16 × 28,746.12
  4. Step 4: Simplify right side
    52,620.60x = 2,087,375,357.06
  5. Step 5: Solve for x
    x = 2,087,375,357.06/52,620.60
  6. Step 6: Final answer
    x = 39,668.41

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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.