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Finding the Fourth Proportional to 70,233.35, 105,300.81 and 25,854.35

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Solution

The fourth proportional to 70,233.35, 105,300.81 and 25,854.35 is: 38,763.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,233.35 : 105,300.81 = 25,854.35 : x
  2. Step 2: Convert to fraction form
    70,233.35/105,300.81 = 25,854.35/x
  3. Step 3: Cross multiply
    70,233.35x = 105,300.81 × 25,854.35
  4. Step 4: Simplify right side
    70,233.35x = 2,722,483,470.52
  5. Step 5: Solve for x
    x = 2,722,483,470.52/70,233.35
  6. Step 6: Final answer
    x = 38,763.40

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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.