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Finding the Fourth Proportional to 9,483.40, 13,087.02 and 5,291.64

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Solution

The fourth proportional to 9,483.40, 13,087.02 and 5,291.64 is: 7,302.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,483.40 : 13,087.02 = 5,291.64 : x
  2. Step 2: Convert to fraction form
    9,483.40/13,087.02 = 5,291.64/x
  3. Step 3: Cross multiply
    9,483.40x = 13,087.02 × 5,291.64
  4. Step 4: Simplify right side
    9,483.40x = 69,251,798.51
  5. Step 5: Solve for x
    x = 69,251,798.51/9,483.40
  6. Step 6: Final answer
    x = 7,302.42

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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.