Home / 66,298.10-99,450.42-18,920.17

Finding the Fourth Proportional to 66,298.10, 99,450.42 and 18,920.17

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Solution

The fourth proportional to 66,298.10, 99,450.42 and 18,920.17 is: 28,381.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,298.10 : 99,450.42 = 18,920.17 : x
  2. Step 2: Convert to fraction form
    66,298.10/99,450.42 = 18,920.17/x
  3. Step 3: Cross multiply
    66,298.10x = 99,450.42 × 18,920.17
  4. Step 4: Simplify right side
    66,298.10x = 1,881,618,846.30
  5. Step 5: Solve for x
    x = 1,881,618,846.30/66,298.10
  6. Step 6: Final answer
    x = 28,381.19

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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.