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Finding the Fourth Proportional to 14,553.32, 21,830.08 and 6,654.20

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Solution

The fourth proportional to 14,553.32, 21,830.08 and 6,654.20 is: 9,981.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,553.32 : 21,830.08 = 6,654.20 : x
  2. Step 2: Convert to fraction form
    14,553.32/21,830.08 = 6,654.20/x
  3. Step 3: Cross multiply
    14,553.32x = 21,830.08 × 6,654.20
  4. Step 4: Simplify right side
    14,553.32x = 145,261,718.34
  5. Step 5: Solve for x
    x = 145,261,718.34/14,553.32
  6. Step 6: Final answer
    x = 9,981.35

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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.