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Finding the Fourth Proportional to 9,648.72, 14,456.88 and 6,719.76

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Solution

The fourth proportional to 9,648.72, 14,456.88 and 6,719.76 is: 10,068.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,648.72 : 14,456.88 = 6,719.76 : x
  2. Step 2: Convert to fraction form
    9,648.72/14,456.88 = 6,719.76/x
  3. Step 3: Cross multiply
    9,648.72x = 14,456.88 × 6,719.76
  4. Step 4: Simplify right side
    9,648.72x = 97,146,763.95
  5. Step 5: Solve for x
    x = 97,146,763.95/9,648.72
  6. Step 6: Final answer
    x = 10,068.36

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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.