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Finding the Fourth Proportional to 14,618.74, 21,898.95 and 9,058.90

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Solution

The fourth proportional to 14,618.74, 21,898.95 and 9,058.90 is: 13,570.28

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,618.74 : 21,898.95 = 9,058.90 : x
  2. Step 2: Convert to fraction form
    14,618.74/21,898.95 = 9,058.90/x
  3. Step 3: Cross multiply
    14,618.74x = 21,898.95 × 9,058.90
  4. Step 4: Simplify right side
    14,618.74x = 198,380,398.16
  5. Step 5: Solve for x
    x = 198,380,398.16/14,618.74
  6. Step 6: Final answer
    x = 13,570.28

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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.