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Finding the Fourth Proportional to 33,321.81, 49,990.63 and 9,948.86

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Solution

The fourth proportional to 33,321.81, 49,990.63 and 9,948.86 is: 14,925.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    33,321.81 : 49,990.63 = 9,948.86 : x
  2. Step 2: Convert to fraction form
    33,321.81/49,990.63 = 9,948.86/x
  3. Step 3: Cross multiply
    33,321.81x = 49,990.63 × 9,948.86
  4. Step 4: Simplify right side
    33,321.81x = 497,349,779.18
  5. Step 5: Solve for x
    x = 497,349,779.18/33,321.81
  6. Step 6: Final answer
    x = 14,925.65

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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.