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Finding the Fourth Proportional to 19,477.30, 29,218.76 and 6,145.76

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Solution

The fourth proportional to 19,477.30, 29,218.76 and 6,145.76 is: 9,219.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,477.30 : 29,218.76 = 6,145.76 : x
  2. Step 2: Convert to fraction form
    19,477.30/29,218.76 = 6,145.76/x
  3. Step 3: Cross multiply
    19,477.30x = 29,218.76 × 6,145.76
  4. Step 4: Simplify right side
    19,477.30x = 179,571,574.87
  5. Step 5: Solve for x
    x = 179,571,574.87/19,477.30
  6. Step 6: Final answer
    x = 9,219.53

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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.