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Finding the Fourth Proportional to 19,695.32, 29,518.02 and 19,487

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Solution

The fourth proportional to 19,695.32, 29,518.02 and 19,487 is: 29,205.80

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,695.32 : 29,518.02 = 19,487 : x
  2. Step 2: Convert to fraction form
    19,695.32/29,518.02 = 19,487/x
  3. Step 3: Cross multiply
    19,695.32x = 29,518.02 × 19,487
  4. Step 4: Simplify right side
    19,695.32x = 575,217,655.74
  5. Step 5: Solve for x
    x = 575,217,655.74/19,695.32
  6. Step 6: Final answer
    x = 29,205.80

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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.