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Finding the Fourth Proportional to 60,960.30, 91,440.45 and 53,184.30

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Solution

The fourth proportional to 60,960.30, 91,440.45 and 53,184.30 is: 79,776.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,960.30 : 91,440.45 = 53,184.30 : x
  2. Step 2: Convert to fraction form
    60,960.30/91,440.45 = 53,184.30/x
  3. Step 3: Cross multiply
    60,960.30x = 91,440.45 × 53,184.30
  4. Step 4: Simplify right side
    60,960.30x = 4,863,196,324.94
  5. Step 5: Solve for x
    x = 4,863,196,324.94/60,960.30
  6. Step 6: Final answer
    x = 79,776.45

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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.