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Finding the Fourth Proportional to 9,931.44, 14,901.48 and 6,858.48

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Solution

The fourth proportional to 9,931.44, 14,901.48 and 6,858.48 is: 10,290.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,931.44 : 14,901.48 = 6,858.48 : x
  2. Step 2: Convert to fraction form
    9,931.44/14,901.48 = 6,858.48/x
  3. Step 3: Cross multiply
    9,931.44x = 14,901.48 × 6,858.48
  4. Step 4: Simplify right side
    9,931.44x = 102,201,502.55
  5. Step 5: Solve for x
    x = 102,201,502.55/9,931.44
  6. Step 6: Final answer
    x = 10,290.70

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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.