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Finding the Fourth Proportional to 77,510.79, 106,958.36 and 46,895.30

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Solution

The fourth proportional to 77,510.79, 106,958.36 and 46,895.30 is: 64,711.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    77,510.79 : 106,958.36 = 46,895.30 : x
  2. Step 2: Convert to fraction form
    77,510.79/106,958.36 = 46,895.30/x
  3. Step 3: Cross multiply
    77,510.79x = 106,958.36 × 46,895.30
  4. Step 4: Simplify right side
    77,510.79x = 5,015,844,145.23
  5. Step 5: Solve for x
    x = 5,015,844,145.23/77,510.79
  6. Step 6: Final answer
    x = 64,711.56

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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.