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Finding the Fourth Proportional to 72,928.07, 109,392.10 and 23,680.07

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Solution

The fourth proportional to 72,928.07, 109,392.10 and 23,680.07 is: 35,520.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,928.07 : 109,392.10 = 23,680.07 : x
  2. Step 2: Convert to fraction form
    72,928.07/109,392.10 = 23,680.07/x
  3. Step 3: Cross multiply
    72,928.07x = 109,392.10 × 23,680.07
  4. Step 4: Simplify right side
    72,928.07x = 2,590,412,038.49
  5. Step 5: Solve for x
    x = 2,590,412,038.49/72,928.07
  6. Step 6: Final answer
    x = 35,520.10

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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.