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Finding the Fourth Proportional to 52,663.40, 79,005.90 and 17,628.20

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Solution

The fourth proportional to 52,663.40, 79,005.90 and 17,628.20 is: 26,445.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,663.40 : 79,005.90 = 17,628.20 : x
  2. Step 2: Convert to fraction form
    52,663.40/79,005.90 = 17,628.20/x
  3. Step 3: Cross multiply
    52,663.40x = 79,005.90 × 17,628.20
  4. Step 4: Simplify right side
    52,663.40x = 1,392,731,806.38
  5. Step 5: Solve for x
    x = 1,392,731,806.38/52,663.40
  6. Step 6: Final answer
    x = 26,445.92

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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.