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Finding the Fourth Proportional to 63,423.03, 87,582.63 and 47,479.80

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Solution

The fourth proportional to 63,423.03, 87,582.63 and 47,479.80 is: 65,566.18

Step by Step Solution

  1. Step 1: Write the proportion equation
    63,423.03 : 87,582.63 = 47,479.80 : x
  2. Step 2: Convert to fraction form
    63,423.03/87,582.63 = 47,479.80/x
  3. Step 3: Cross multiply
    63,423.03x = 87,582.63 × 47,479.80
  4. Step 4: Simplify right side
    63,423.03x = 4,158,406,262.36
  5. Step 5: Solve for x
    x = 4,158,406,262.36/63,423.03
  6. Step 6: Final answer
    x = 65,566.18

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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.