Home / 66,298.85-99,451.55-18,920.92

Finding the Fourth Proportional to 66,298.85, 99,451.55 and 18,920.92

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Solution

The fourth proportional to 66,298.85, 99,451.55 and 18,920.92 is: 28,382.32

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,298.85 : 99,451.55 = 18,920.92 : x
  2. Step 2: Convert to fraction form
    66,298.85/99,451.55 = 18,920.92/x
  3. Step 3: Cross multiply
    66,298.85x = 99,451.55 × 18,920.92
  4. Step 4: Simplify right side
    66,298.85x = 1,881,714,726.82
  5. Step 5: Solve for x
    x = 1,881,714,726.82/66,298.85
  6. Step 6: Final answer
    x = 28,382.32

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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.