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Finding the Fourth Proportional to 9,804.65, 13,530.65 and 5,328.59

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Solution

The fourth proportional to 9,804.65, 13,530.65 and 5,328.59 is: 7,353.57

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,804.65 : 13,530.65 = 5,328.59 : x
  2. Step 2: Convert to fraction form
    9,804.65/13,530.65 = 5,328.59/x
  3. Step 3: Cross multiply
    9,804.65x = 13,530.65 × 5,328.59
  4. Step 4: Simplify right side
    9,804.65x = 72,099,191.99
  5. Step 5: Solve for x
    x = 72,099,191.99/9,804.65
  6. Step 6: Final answer
    x = 7,353.57

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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.