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Finding the Fourth Proportional to 60,813.45, 90,820.92 and 51,833.10

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Solution

The fourth proportional to 60,813.45, 90,820.92 and 51,833.10 is: 77,409.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,813.45 : 90,820.92 = 51,833.10 : x
  2. Step 2: Convert to fraction form
    60,813.45/90,820.92 = 51,833.10/x
  3. Step 3: Cross multiply
    60,813.45x = 90,820.92 × 51,833.10
  4. Step 4: Simplify right side
    60,813.45x = 4,707,529,828.45
  5. Step 5: Solve for x
    x = 4,707,529,828.45/60,813.45
  6. Step 6: Final answer
    x = 77,409.35

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.49) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.