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Finding the Fourth Proportional to 52,861.68, 79,290 and 17,802.72

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Solution

The fourth proportional to 52,861.68, 79,290 and 17,802.72 is: 26,703.23

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,861.68 : 79,290 = 17,802.72 : x
  2. Step 2: Convert to fraction form
    52,861.68/79,290 = 17,802.72/x
  3. Step 3: Cross multiply
    52,861.68x = 79,290 × 17,802.72
  4. Step 4: Simplify right side
    52,861.68x = 1,411,577,668.80
  5. Step 5: Solve for x
    x = 1,411,577,668.80/52,861.68
  6. Step 6: Final answer
    x = 26,703.23

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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.