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Finding the Fourth Proportional to 64,706.96, 97,060.12 and 55,915.12

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Solution

The fourth proportional to 64,706.96, 97,060.12 and 55,915.12 is: 83,872.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,706.96 : 97,060.12 = 55,915.12 : x
  2. Step 2: Convert to fraction form
    64,706.96/97,060.12 = 55,915.12/x
  3. Step 3: Cross multiply
    64,706.96x = 97,060.12 × 55,915.12
  4. Step 4: Simplify right side
    64,706.96x = 5,427,128,257.01
  5. Step 5: Solve for x
    x = 5,427,128,257.01/64,706.96
  6. Step 6: Final answer
    x = 83,872.40

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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.