Home / 51,582.96-71,187.12-28,926.72

Finding the Fourth Proportional to 51,582.96, 71,187.12 and 28,926.72

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Solution

The fourth proportional to 51,582.96, 71,187.12 and 28,926.72 is: 39,920.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    51,582.96 : 71,187.12 = 28,926.72 : x
  2. Step 2: Convert to fraction form
    51,582.96/71,187.12 = 28,926.72/x
  3. Step 3: Cross multiply
    51,582.96x = 71,187.12 × 28,926.72
  4. Step 4: Simplify right side
    51,582.96x = 2,059,209,887.85
  5. Step 5: Solve for x
    x = 2,059,209,887.85/51,582.96
  6. Step 6: Final answer
    x = 39,920.35

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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.