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Finding the Fourth Proportional to 67,653.60, 93,399.50 and 40,802.88

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Solution

The fourth proportional to 67,653.60, 93,399.50 and 40,802.88 is: 56,330.61

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,653.60 : 93,399.50 = 40,802.88 : x
  2. Step 2: Convert to fraction form
    67,653.60/93,399.50 = 40,802.88/x
  3. Step 3: Cross multiply
    67,653.60x = 93,399.50 × 40,802.88
  4. Step 4: Simplify right side
    67,653.60x = 3,810,968,590.56
  5. Step 5: Solve for x
    x = 3,810,968,590.56/67,653.60
  6. Step 6: Final answer
    x = 56,330.61

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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.