Home / 66,182.77-99,275.18-21,212.58

Finding the Fourth Proportional to 66,182.77, 99,275.18 and 21,212.58

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Solution

The fourth proportional to 66,182.77, 99,275.18 and 21,212.58 is: 31,819.20

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,182.77 : 99,275.18 = 21,212.58 : x
  2. Step 2: Convert to fraction form
    66,182.77/99,275.18 = 21,212.58/x
  3. Step 3: Cross multiply
    66,182.77x = 99,275.18 × 21,212.58
  4. Step 4: Simplify right side
    66,182.77x = 2,105,882,697.76
  5. Step 5: Solve for x
    x = 2,105,882,697.76/66,182.77
  6. Step 6: Final answer
    x = 31,819.20

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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.