Home / 19,036.60-28,561.66-8,505.65

Finding the Fourth Proportional to 19,036.60, 28,561.66 and 8,505.65

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Solution

The fourth proportional to 19,036.60, 28,561.66 and 8,505.65 is: 12,761.50

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,036.60 : 28,561.66 = 8,505.65 : x
  2. Step 2: Convert to fraction form
    19,036.60/28,561.66 = 8,505.65/x
  3. Step 3: Cross multiply
    19,036.60x = 28,561.66 × 8,505.65
  4. Step 4: Simplify right side
    19,036.60x = 242,935,533.52
  5. Step 5: Solve for x
    x = 242,935,533.52/19,036.60
  6. Step 6: Final answer
    x = 12,761.50

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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.