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Finding the Fourth Proportional to 67,646.44, 101,482.42 and 20,888.40

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Solution

The fourth proportional to 67,646.44, 101,482.42 and 20,888.40 is: 31,336.54

Step by Step Solution

  1. Step 1: Write the proportion equation
    67,646.44 : 101,482.42 = 20,888.40 : x
  2. Step 2: Convert to fraction form
    67,646.44/101,482.42 = 20,888.40/x
  3. Step 3: Cross multiply
    67,646.44x = 101,482.42 × 20,888.40
  4. Step 4: Simplify right side
    67,646.44x = 2,119,805,381.93
  5. Step 5: Solve for x
    x = 2,119,805,381.93/67,646.44
  6. Step 6: Final answer
    x = 31,336.54

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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.