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Finding the Fourth Proportional to 67,113.60, 92,630.40 and 38,822.40

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Solution

The fourth proportional to 67,113.60, 92,630.40 and 38,822.40 is: 53,582.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,113.60 : 92,630.40 = 38,822.40 : x
  2. Step 2: Convert to fraction form
    67,113.60/92,630.40 = 38,822.40/x
  3. Step 3: Cross multiply
    67,113.60x = 92,630.40 × 38,822.40
  4. Step 4: Simplify right side
    67,113.60x = 3,596,134,440.96
  5. Step 5: Solve for x
    x = 3,596,134,440.96/67,113.60
  6. Step 6: Final answer
    x = 53,582.80

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.