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Finding the Fourth Proportional to 76,472.62, 105,518.19 and 46,253.68

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Solution

The fourth proportional to 76,472.62, 105,518.19 and 46,253.68 is: 63,821.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,472.62 : 105,518.19 = 46,253.68 : x
  2. Step 2: Convert to fraction form
    76,472.62/105,518.19 = 46,253.68/x
  3. Step 3: Cross multiply
    76,472.62x = 105,518.19 × 46,253.68
  4. Step 4: Simplify right side
    76,472.62x = 4,880,604,594.44
  5. Step 5: Solve for x
    x = 4,880,604,594.44/76,472.62
  6. Step 6: Final answer
    x = 63,821.60

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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.