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Finding the Fourth Proportional to 15,095.70, 20,833.02 and 8,723.46

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Solution

The fourth proportional to 15,095.70, 20,833.02 and 8,723.46 is: 12,038.93

Step by Step Solution

  1. Step 1: Write the proportion equation
    15,095.70 : 20,833.02 = 8,723.46 : x
  2. Step 2: Convert to fraction form
    15,095.70/20,833.02 = 8,723.46/x
  3. Step 3: Cross multiply
    15,095.70x = 20,833.02 × 8,723.46
  4. Step 4: Simplify right side
    15,095.70x = 181,736,016.65
  5. Step 5: Solve for x
    x = 181,736,016.65/15,095.70
  6. Step 6: Final answer
    x = 12,038.93

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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.