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Finding the Fourth Proportional to 16,700.10, 25,050.47 and 7,813.04

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Solution

The fourth proportional to 16,700.10, 25,050.47 and 7,813.04 is: 11,719.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    16,700.10 : 25,050.47 = 7,813.04 : x
  2. Step 2: Convert to fraction form
    16,700.10/25,050.47 = 7,813.04/x
  3. Step 3: Cross multiply
    16,700.10x = 25,050.47 × 7,813.04
  4. Step 4: Simplify right side
    16,700.10x = 195,720,159.81
  5. Step 5: Solve for x
    x = 195,720,159.81/16,700.10
  6. Step 6: Final answer
    x = 11,719.70

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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.