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Finding the Fourth Proportional to 76,324.61, 105,259.01 and 47,646.92

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Solution

The fourth proportional to 76,324.61, 105,259.01 and 47,646.92 is: 65,709.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    76,324.61 : 105,259.01 = 47,646.92 : x
  2. Step 2: Convert to fraction form
    76,324.61/105,259.01 = 47,646.92/x
  3. Step 3: Cross multiply
    76,324.61x = 105,259.01 × 47,646.92
  4. Step 4: Simplify right side
    76,324.61x = 5,015,267,221.57
  5. Step 5: Solve for x
    x = 5,015,267,221.57/76,324.61
  6. Step 6: Final answer
    x = 65,709.70

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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.