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Finding the Fourth Proportional to 14,210.81, 19,610.92 and 7,923.19

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Solution

The fourth proportional to 14,210.81, 19,610.92 and 7,923.19 is: 10,934.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,210.81 : 19,610.92 = 7,923.19 : x
  2. Step 2: Convert to fraction form
    14,210.81/19,610.92 = 7,923.19/x
  3. Step 3: Cross multiply
    14,210.81x = 19,610.92 × 7,923.19
  4. Step 4: Simplify right side
    14,210.81x = 155,381,006.11
  5. Step 5: Solve for x
    x = 155,381,006.11/14,210.81
  6. Step 6: Final answer
    x = 10,934.00

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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.