Home / 66,615.08-99,909.65-19,226.84

Finding the Fourth Proportional to 66,615.08, 99,909.65 and 19,226.84

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Solution

The fourth proportional to 66,615.08, 99,909.65 and 19,226.84 is: 28,836.51

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,615.08 : 99,909.65 = 19,226.84 : x
  2. Step 2: Convert to fraction form
    66,615.08/99,909.65 = 19,226.84/x
  3. Step 3: Cross multiply
    66,615.08x = 99,909.65 × 19,226.84
  4. Step 4: Simplify right side
    66,615.08x = 1,920,946,403.52
  5. Step 5: Solve for x
    x = 1,920,946,403.52/66,615.08
  6. Step 6: Final answer
    x = 28,836.51

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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.