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Finding the Fourth Proportional to 9,358.94, 12,909.98 and 6,670.76

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Solution

The fourth proportional to 9,358.94, 12,909.98 and 6,670.76 is: 9,201.82

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,358.94 : 12,909.98 = 6,670.76 : x
  2. Step 2: Convert to fraction form
    9,358.94/12,909.98 = 6,670.76/x
  3. Step 3: Cross multiply
    9,358.94x = 12,909.98 × 6,670.76
  4. Step 4: Simplify right side
    9,358.94x = 86,119,330.31
  5. Step 5: Solve for x
    x = 86,119,330.31/9,358.94
  6. Step 6: Final answer
    x = 9,201.82

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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.