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Finding the Fourth Proportional to 46,855.86, 64,689.21 and 28,974.84

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Solution

The fourth proportional to 46,855.86, 64,689.21 and 28,974.84 is: 40,002.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,855.86 : 64,689.21 = 28,974.84 : x
  2. Step 2: Convert to fraction form
    46,855.86/64,689.21 = 28,974.84/x
  3. Step 3: Cross multiply
    46,855.86x = 64,689.21 × 28,974.84
  4. Step 4: Simplify right side
    46,855.86x = 1,874,359,509.48
  5. Step 5: Solve for x
    x = 1,874,359,509.48/46,855.86
  6. Step 6: Final answer
    x = 40,002.67

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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.