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Finding the Fourth Proportional to 77,711.76, 116,567.64 and 30,965.04

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Solution

The fourth proportional to 77,711.76, 116,567.64 and 30,965.04 is: 46,447.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,711.76 : 116,567.64 = 30,965.04 : x
  2. Step 2: Convert to fraction form
    77,711.76/116,567.64 = 30,965.04/x
  3. Step 3: Cross multiply
    77,711.76x = 116,567.64 × 30,965.04
  4. Step 4: Simplify right side
    77,711.76x = 3,609,521,635.31
  5. Step 5: Solve for x
    x = 3,609,521,635.31/77,711.76
  6. Step 6: Final answer
    x = 46,447.56

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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.