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Finding the Fourth Proportional to 72,752.60, 109,149.96 and 26,009.12

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Solution

The fourth proportional to 72,752.60, 109,149.96 and 26,009.12 is: 39,021.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,752.60 : 109,149.96 = 26,009.12 : x
  2. Step 2: Convert to fraction form
    72,752.60/109,149.96 = 26,009.12/x
  3. Step 3: Cross multiply
    72,752.60x = 109,149.96 × 26,009.12
  4. Step 4: Simplify right side
    72,752.60x = 2,838,894,407.64
  5. Step 5: Solve for x
    x = 2,838,894,407.64/72,752.60
  6. Step 6: Final answer
    x = 39,021.21

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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.