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Finding the Fourth Proportional to 9,357.48, 12,909.94 and 7,204.68

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Solution

The fourth proportional to 9,357.48, 12,909.94 and 7,204.68 is: 9,939.85

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,357.48 : 12,909.94 = 7,204.68 : x
  2. Step 2: Convert to fraction form
    9,357.48/12,909.94 = 7,204.68/x
  3. Step 3: Cross multiply
    9,357.48x = 12,909.94 × 7,204.68
  4. Step 4: Simplify right side
    9,357.48x = 93,011,968.51
  5. Step 5: Solve for x
    x = 93,011,968.51/9,357.48
  6. Step 6: Final answer
    x = 9,939.85

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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.