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Finding the Fourth Proportional to 5,915.64, 8,877.78 and 5,708.28

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Solution

The fourth proportional to 5,915.64, 8,877.78 and 5,708.28 is: 8,566.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    5,915.64 : 8,877.78 = 5,708.28 : x
  2. Step 2: Convert to fraction form
    5,915.64/8,877.78 = 5,708.28/x
  3. Step 3: Cross multiply
    5,915.64x = 8,877.78 × 5,708.28
  4. Step 4: Simplify right side
    5,915.64x = 50,676,854.02
  5. Step 5: Solve for x
    x = 50,676,854.02/5,915.64
  6. Step 6: Final answer
    x = 8,566.59

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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.