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Finding the Fourth Proportional to 52,632.40, 78,833.40 and 45,720.40

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Solution

The fourth proportional to 52,632.40, 78,833.40 and 45,720.40 is: 68,480.53

Step by Step Solution

  1. Step 1: Write the proportion equation
    52,632.40 : 78,833.40 = 45,720.40 : x
  2. Step 2: Convert to fraction form
    52,632.40/78,833.40 = 45,720.40/x
  3. Step 3: Cross multiply
    52,632.40x = 78,833.40 × 45,720.40
  4. Step 4: Simplify right side
    52,632.40x = 3,604,294,581.36
  5. Step 5: Solve for x
    x = 3,604,294,581.36/52,632.40
  6. Step 6: Final answer
    x = 68,480.53

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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.