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Finding the Fourth Proportional to 60,005.76, 82,812.90 and 34,520.40

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Solution

The fourth proportional to 60,005.76, 82,812.90 and 34,520.40 is: 47,641.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    60,005.76 : 82,812.90 = 34,520.40 : x
  2. Step 2: Convert to fraction form
    60,005.76/82,812.90 = 34,520.40/x
  3. Step 3: Cross multiply
    60,005.76x = 82,812.90 × 34,520.40
  4. Step 4: Simplify right side
    60,005.76x = 2,858,734,433.16
  5. Step 5: Solve for x
    x = 2,858,734,433.16/60,005.76
  6. Step 6: Final answer
    x = 47,641.00

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.