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Finding the Fourth Proportional to 70,641.54, 105,952.82 and 26,262.18

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Solution

The fourth proportional to 70,641.54, 105,952.82 and 26,262.18 is: 39,389.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,641.54 : 105,952.82 = 26,262.18 : x
  2. Step 2: Convert to fraction form
    70,641.54/105,952.82 = 26,262.18/x
  3. Step 3: Cross multiply
    70,641.54x = 105,952.82 × 26,262.18
  4. Step 4: Simplify right side
    70,641.54x = 2,782,551,899.04
  5. Step 5: Solve for x
    x = 2,782,551,899.04/70,641.54
  6. Step 6: Final answer
    x = 39,389.74

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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.