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Finding the Fourth Proportional to 60,467.60, 90,658.20 and 27,160.40

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Solution

The fourth proportional to 60,467.60, 90,658.20 and 27,160.40 is: 40,721.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,467.60 : 90,658.20 = 27,160.40 : x
  2. Step 2: Convert to fraction form
    60,467.60/90,658.20 = 27,160.40/x
  3. Step 3: Cross multiply
    60,467.60x = 90,658.20 × 27,160.40
  4. Step 4: Simplify right side
    60,467.60x = 2,462,312,975.28
  5. Step 5: Solve for x
    x = 2,462,312,975.28/60,467.60
  6. Step 6: Final answer
    x = 40,721.20

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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.