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Finding the Fourth Proportional to 19,699.34, 29,549.28 and 6,551.72

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Solution

The fourth proportional to 19,699.34, 29,549.28 and 6,551.72 is: 9,827.67

Step by Step Solution

  1. Step 1: Write the proportion equation
    19,699.34 : 29,549.28 = 6,551.72 : x
  2. Step 2: Convert to fraction form
    19,699.34/29,549.28 = 6,551.72/x
  3. Step 3: Cross multiply
    19,699.34x = 29,549.28 × 6,551.72
  4. Step 4: Simplify right side
    19,699.34x = 193,598,608.76
  5. Step 5: Solve for x
    x = 193,598,608.76/19,699.34
  6. Step 6: Final answer
    x = 9,827.67

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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.