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Finding the Fourth Proportional to 9,060.56, 12,528.24 and 7,894.16

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Solution

The fourth proportional to 9,060.56, 12,528.24 and 7,894.16 is: 10,915.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,060.56 : 12,528.24 = 7,894.16 : x
  2. Step 2: Convert to fraction form
    9,060.56/12,528.24 = 7,894.16/x
  3. Step 3: Cross multiply
    9,060.56x = 12,528.24 × 7,894.16
  4. Step 4: Simplify right side
    9,060.56x = 98,899,931.08
  5. Step 5: Solve for x
    x = 98,899,931.08/9,060.56
  6. Step 6: Final answer
    x = 10,915.43

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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.