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Finding the Fourth Proportional to 73,008.59, 109,512.88 and 28,656.23

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Solution

The fourth proportional to 73,008.59, 109,512.88 and 28,656.23 is: 42,984.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    73,008.59 : 109,512.88 = 28,656.23 : x
  2. Step 2: Convert to fraction form
    73,008.59/109,512.88 = 28,656.23/x
  3. Step 3: Cross multiply
    73,008.59x = 109,512.88 × 28,656.23
  4. Step 4: Simplify right side
    73,008.59x = 3,138,225,658.04
  5. Step 5: Solve for x
    x = 3,138,225,658.04/73,008.59
  6. Step 6: Final answer
    x = 42,984.34

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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.