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Finding the Fourth Proportional to 14,740.71, 20,341.71 and 8,771.01

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Solution

The fourth proportional to 14,740.71, 20,341.71 and 8,771.01 is: 12,103.71

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,740.71 : 20,341.71 = 8,771.01 : x
  2. Step 2: Convert to fraction form
    14,740.71/20,341.71 = 8,771.01/x
  3. Step 3: Cross multiply
    14,740.71x = 20,341.71 × 8,771.01
  4. Step 4: Simplify right side
    14,740.71x = 178,417,341.83
  5. Step 5: Solve for x
    x = 178,417,341.83/14,740.71
  6. Step 6: Final answer
    x = 12,103.71

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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.