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Finding the Fourth Proportional to 19,909.59, 29,882.86 and 10,055.79

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Solution

The fourth proportional to 19,909.59, 29,882.86 and 10,055.79 is: 15,093.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,909.59 : 29,882.86 = 10,055.79 : x
  2. Step 2: Convert to fraction form
    19,909.59/29,882.86 = 10,055.79/x
  3. Step 3: Cross multiply
    19,909.59x = 29,882.86 × 10,055.79
  4. Step 4: Simplify right side
    19,909.59x = 300,495,565.07
  5. Step 5: Solve for x
    x = 300,495,565.07/19,909.59
  6. Step 6: Final answer
    x = 15,093.01

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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.