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Finding the Fourth Proportional to 67,758.76, 93,510.60 and 40,900.92

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Solution

The fourth proportional to 67,758.76, 93,510.60 and 40,900.92 is: 56,445.39

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,758.76 : 93,510.60 = 40,900.92 : x
  2. Step 2: Convert to fraction form
    67,758.76/93,510.60 = 40,900.92/x
  3. Step 3: Cross multiply
    67,758.76x = 93,510.60 × 40,900.92
  4. Step 4: Simplify right side
    67,758.76x = 3,824,669,569.75
  5. Step 5: Solve for x
    x = 3,824,669,569.75/67,758.76
  6. Step 6: Final answer
    x = 56,445.39

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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.