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Finding the Fourth Proportional to 70,342.93, 105,265 and 62,039.13

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Solution

The fourth proportional to 70,342.93, 105,265 and 62,039.13 is: 92,838.74

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,342.93 : 105,265 = 62,039.13 : x
  2. Step 2: Convert to fraction form
    70,342.93/105,265 = 62,039.13/x
  3. Step 3: Cross multiply
    70,342.93x = 105,265 × 62,039.13
  4. Step 4: Simplify right side
    70,342.93x = 6,530,549,019.45
  5. Step 5: Solve for x
    x = 6,530,549,019.45/70,342.93
  6. Step 6: Final answer
    x = 92,838.74

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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.