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Finding the Fourth Proportional to 9,060.42, 13,575.14 and 7,085.30

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Solution

The fourth proportional to 9,060.42, 13,575.14 and 7,085.30 is: 10,615.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,060.42 : 13,575.14 = 7,085.30 : x
  2. Step 2: Convert to fraction form
    9,060.42/13,575.14 = 7,085.30/x
  3. Step 3: Cross multiply
    9,060.42x = 13,575.14 × 7,085.30
  4. Step 4: Simplify right side
    9,060.42x = 96,183,862.71
  5. Step 5: Solve for x
    x = 96,183,862.71/9,060.42
  6. Step 6: Final answer
    x = 10,615.82

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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.