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Finding the Fourth Proportional to 72,302.15, 108,412.99 and 22,368.35

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Solution

The fourth proportional to 72,302.15, 108,412.99 and 22,368.35 is: 33,540.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    72,302.15 : 108,412.99 = 22,368.35 : x
  2. Step 2: Convert to fraction form
    72,302.15/108,412.99 = 22,368.35/x
  3. Step 3: Cross multiply
    72,302.15x = 108,412.99 × 22,368.35
  4. Step 4: Simplify right side
    72,302.15x = 2,425,019,704.87
  5. Step 5: Solve for x
    x = 2,425,019,704.87/72,302.15
  6. Step 6: Final answer
    x = 33,540.08

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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.