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Finding the Fourth Proportional to 10,957.90, 15,110.01 and 6,973.91

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Solution

The fourth proportional to 10,957.90, 15,110.01 and 6,973.91 is: 9,616.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    10,957.90 : 15,110.01 = 6,973.91 : x
  2. Step 2: Convert to fraction form
    10,957.90/15,110.01 = 6,973.91/x
  3. Step 3: Cross multiply
    10,957.90x = 15,110.01 × 6,973.91
  4. Step 4: Simplify right side
    10,957.90x = 105,375,915.95
  5. Step 5: Solve for x
    x = 105,375,915.95/10,957.90
  6. Step 6: Final answer
    x = 9,616.43

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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.