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Finding the Fourth Proportional to 52,572.66, 78,816.45 and 35,890.74

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Solution

The fourth proportional to 52,572.66, 78,816.45 and 35,890.74 is: 53,807.07

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,572.66 : 78,816.45 = 35,890.74 : x
  2. Step 2: Convert to fraction form
    52,572.66/78,816.45 = 35,890.74/x
  3. Step 3: Cross multiply
    52,572.66x = 78,816.45 × 35,890.74
  4. Step 4: Simplify right side
    52,572.66x = 2,828,780,714.67
  5. Step 5: Solve for x
    x = 2,828,780,714.67/52,572.66
  6. Step 6: Final answer
    x = 53,807.07

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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.