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Finding the Fourth Proportional to 14,607.87, 21,931.26 and 9,879.92

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Solution

The fourth proportional to 14,607.87, 21,931.26 and 9,879.92 is: 14,833.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,607.87 : 21,931.26 = 9,879.92 : x
  2. Step 2: Convert to fraction form
    14,607.87/21,931.26 = 9,879.92/x
  3. Step 3: Cross multiply
    14,607.87x = 21,931.26 × 9,879.92
  4. Step 4: Simplify right side
    14,607.87x = 216,678,935.24
  5. Step 5: Solve for x
    x = 216,678,935.24/14,607.87
  6. Step 6: Final answer
    x = 14,833.03

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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.