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Finding the Fourth Proportional to 19,406.16, 29,109.16 and 5,555.16

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Solution

The fourth proportional to 19,406.16, 29,109.16 and 5,555.16 is: 8,332.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,406.16 : 29,109.16 = 5,555.16 : x
  2. Step 2: Convert to fraction form
    19,406.16/29,109.16 = 5,555.16/x
  3. Step 3: Cross multiply
    19,406.16x = 29,109.16 × 5,555.16
  4. Step 4: Simplify right side
    19,406.16x = 161,706,041.27
  5. Step 5: Solve for x
    x = 161,706,041.27/19,406.16
  6. Step 6: Final answer
    x = 8,332.72

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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.