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Finding the Fourth Proportional to 9,365.01, 12,920.43 and 6,009.72

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Solution

The fourth proportional to 9,365.01, 12,920.43 and 6,009.72 is: 8,291.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,365.01 : 12,920.43 = 6,009.72 : x
  2. Step 2: Convert to fraction form
    9,365.01/12,920.43 = 6,009.72/x
  3. Step 3: Cross multiply
    9,365.01x = 12,920.43 × 6,009.72
  4. Step 4: Simplify right side
    9,365.01x = 77,648,166.58
  5. Step 5: Solve for x
    x = 77,648,166.58/9,365.01
  6. Step 6: Final answer
    x = 8,291.31

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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.