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Finding the Fourth Proportional to 8,748.48, 13,071.51 and 8,442.24

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Solution

The fourth proportional to 8,748.48, 13,071.51 and 8,442.24 is: 12,613.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,748.48 : 13,071.51 = 8,442.24 : x
  2. Step 2: Convert to fraction form
    8,748.48/13,071.51 = 8,442.24/x
  3. Step 3: Cross multiply
    8,748.48x = 13,071.51 × 8,442.24
  4. Step 4: Simplify right side
    8,748.48x = 110,352,824.58
  5. Step 5: Solve for x
    x = 110,352,824.58/8,748.48
  6. Step 6: Final answer
    x = 12,613.94

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.