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Finding the Fourth Proportional to 4,915.32, 6,782.76 and 2,926.32

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Solution

The fourth proportional to 4,915.32, 6,782.76 and 2,926.32 is: 4,038.09

Step by Step Solution

  1. Step 1: Write the proportion equation
    4,915.32 : 6,782.76 = 2,926.32 : x
  2. Step 2: Convert to fraction form
    4,915.32/6,782.76 = 2,926.32/x
  3. Step 3: Cross multiply
    4,915.32x = 6,782.76 × 2,926.32
  4. Step 4: Simplify right side
    4,915.32x = 19,848,526.24
  5. Step 5: Solve for x
    x = 19,848,526.24/4,915.32
  6. Step 6: Final answer
    x = 4,038.09

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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.