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Finding the Fourth Proportional to 9,407.44, 12,985.92 and 7,056.42

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Solution

The fourth proportional to 9,407.44, 12,985.92 and 7,056.42 is: 9,740.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,407.44 : 12,985.92 = 7,056.42 : x
  2. Step 2: Convert to fraction form
    9,407.44/12,985.92 = 7,056.42/x
  3. Step 3: Cross multiply
    9,407.44x = 12,985.92 × 7,056.42
  4. Step 4: Simplify right side
    9,407.44x = 91,634,056.91
  5. Step 5: Solve for x
    x = 91,634,056.91/9,407.44
  6. Step 6: Final answer
    x = 9,740.59

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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.