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Finding the Fourth Proportional to 46,937.71, 70,406.69 and 13,658.57

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Solution

The fourth proportional to 46,937.71, 70,406.69 and 13,658.57 is: 20,487.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,937.71 : 70,406.69 = 13,658.57 : x
  2. Step 2: Convert to fraction form
    46,937.71/70,406.69 = 13,658.57/x
  3. Step 3: Cross multiply
    46,937.71x = 70,406.69 × 13,658.57
  4. Step 4: Simplify right side
    46,937.71x = 961,654,635.54
  5. Step 5: Solve for x
    x = 961,654,635.54/46,937.71
  6. Step 6: Final answer
    x = 20,487.89

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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.