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Finding the Fourth Proportional to 8,953.58, 12,357.42 and 7,459.13

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Solution

The fourth proportional to 8,953.58, 12,357.42 and 7,459.13 is: 10,294.83

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,953.58 : 12,357.42 = 7,459.13 : x
  2. Step 2: Convert to fraction form
    8,953.58/12,357.42 = 7,459.13/x
  3. Step 3: Cross multiply
    8,953.58x = 12,357.42 × 7,459.13
  4. Step 4: Simplify right side
    8,953.58x = 92,175,602.24
  5. Step 5: Solve for x
    x = 92,175,602.24/8,953.58
  6. Step 6: Final answer
    x = 10,294.83

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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.