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Finding the Fourth Proportional to 21,365.79, 32,036.94 and 6,570.60

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Solution

The fourth proportional to 21,365.79, 32,036.94 and 6,570.60 is: 9,852.29

Step by Step Solution

  1. Step 1: Write the proportion equation
    21,365.79 : 32,036.94 = 6,570.60 : x
  2. Step 2: Convert to fraction form
    21,365.79/32,036.94 = 6,570.60/x
  3. Step 3: Cross multiply
    21,365.79x = 32,036.94 × 6,570.60
  4. Step 4: Simplify right side
    21,365.79x = 210,501,917.96
  5. Step 5: Solve for x
    x = 210,501,917.96/21,365.79
  6. Step 6: Final answer
    x = 9,852.29

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.