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Finding the Fourth Proportional to 6,970.52, 9,615.30 and 4,174.40

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Solution

The fourth proportional to 6,970.52, 9,615.30 and 4,174.40 is: 5,758.27

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,970.52 : 9,615.30 = 4,174.40 : x
  2. Step 2: Convert to fraction form
    6,970.52/9,615.30 = 4,174.40/x
  3. Step 3: Cross multiply
    6,970.52x = 9,615.30 × 4,174.40
  4. Step 4: Simplify right side
    6,970.52x = 40,138,108.32
  5. Step 5: Solve for x
    x = 40,138,108.32/6,970.52
  6. Step 6: Final answer
    x = 5,758.27

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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.