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Finding the Fourth Proportional to 7,551.53, 10,421.10 and 4,194.85

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Solution

The fourth proportional to 7,551.53, 10,421.10 and 4,194.85 is: 5,788.88

Step by Step Solution

  1. Step 1: Write the proportion equation
    7,551.53 : 10,421.10 = 4,194.85 : x
  2. Step 2: Convert to fraction form
    7,551.53/10,421.10 = 4,194.85/x
  3. Step 3: Cross multiply
    7,551.53x = 10,421.10 × 4,194.85
  4. Step 4: Simplify right side
    7,551.53x = 43,714,925.28
  5. Step 5: Solve for x
    x = 43,714,925.28/7,551.53
  6. Step 6: Final answer
    x = 5,788.88

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Double scale
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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.