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Finding the Fourth Proportional to 35,445.67, 53,266.16 and 18,818.16

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Solution

The fourth proportional to 35,445.67, 53,266.16 and 18,818.16 is: 28,279.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    35,445.67 : 53,266.16 = 18,818.16 : x
  2. Step 2: Convert to fraction form
    35,445.67/53,266.16 = 18,818.16/x
  3. Step 3: Cross multiply
    35,445.67x = 53,266.16 × 18,818.16
  4. Step 4: Simplify right side
    35,445.67x = 1,002,371,121.47
  5. Step 5: Solve for x
    x = 1,002,371,121.47/35,445.67
  6. Step 6: Final answer
    x = 28,279.09

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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.