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Finding the Fourth Proportional to 52,762.71, 79,148.19 and 15,323.40

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Solution

The fourth proportional to 52,762.71, 79,148.19 and 15,323.40 is: 22,986.30

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,762.71 : 79,148.19 = 15,323.40 : x
  2. Step 2: Convert to fraction form
    52,762.71/79,148.19 = 15,323.40/x
  3. Step 3: Cross multiply
    52,762.71x = 79,148.19 × 15,323.40
  4. Step 4: Simplify right side
    52,762.71x = 1,212,819,374.65
  5. Step 5: Solve for x
    x = 1,212,819,374.65/52,762.71
  6. Step 6: Final answer
    x = 22,986.30

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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.