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Finding the Fourth Proportional to 9,984.96, 13,779.01 and 5,737.39

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Solution

The fourth proportional to 9,984.96, 13,779.01 and 5,737.39 is: 7,917.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    9,984.96 : 13,779.01 = 5,737.39 : x
  2. Step 2: Convert to fraction form
    9,984.96/13,779.01 = 5,737.39/x
  3. Step 3: Cross multiply
    9,984.96x = 13,779.01 × 5,737.39
  4. Step 4: Simplify right side
    9,984.96x = 79,055,554.18
  5. Step 5: Solve for x
    x = 79,055,554.18/9,984.96
  6. Step 6: Final answer
    x = 7,917.46

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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.