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Finding the Fourth Proportional to 18,307.61, 27,461.40 and 17,372.66

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Solution

The fourth proportional to 18,307.61, 27,461.40 and 17,372.66 is: 26,058.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    18,307.61 : 27,461.40 = 17,372.66 : x
  2. Step 2: Convert to fraction form
    18,307.61/27,461.40 = 17,372.66/x
  3. Step 3: Cross multiply
    18,307.61x = 27,461.40 × 17,372.66
  4. Step 4: Simplify right side
    18,307.61x = 477,077,428.02
  5. Step 5: Solve for x
    x = 477,077,428.02/18,307.61
  6. Step 6: Final answer
    x = 26,058.98

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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.