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Finding the Fourth Proportional to 72,934.90, 109,402.35 and 23,018.89

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Solution

The fourth proportional to 72,934.90, 109,402.35 and 23,018.89 is: 34,528.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,934.90 : 109,402.35 = 23,018.89 : x
  2. Step 2: Convert to fraction form
    72,934.90/109,402.35 = 23,018.89/x
  3. Step 3: Cross multiply
    72,934.90x = 109,402.35 × 23,018.89
  4. Step 4: Simplify right side
    72,934.90x = 2,518,320,660.39
  5. Step 5: Solve for x
    x = 2,518,320,660.39/72,934.90
  6. Step 6: Final answer
    x = 34,528.34

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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.