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Finding the Fourth Proportional to 72,902.94, 109,386.15 and 25,552.08

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Solution

The fourth proportional to 72,902.94, 109,386.15 and 25,552.08 is: 38,339.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,902.94 : 109,386.15 = 25,552.08 : x
  2. Step 2: Convert to fraction form
    72,902.94/109,386.15 = 25,552.08/x
  3. Step 3: Cross multiply
    72,902.94x = 109,386.15 × 25,552.08
  4. Step 4: Simplify right side
    72,902.94x = 2,795,043,655.69
  5. Step 5: Solve for x
    x = 2,795,043,655.69/72,902.94
  6. Step 6: Final answer
    x = 38,339.24

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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.