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Finding the Fourth Proportional to 71,573.10, 98,768.98 and 39,741.18

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Solution

The fourth proportional to 71,573.10, 98,768.98 and 39,741.18 is: 54,841.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,573.10 : 98,768.98 = 39,741.18 : x
  2. Step 2: Convert to fraction form
    71,573.10/98,768.98 = 39,741.18/x
  3. Step 3: Cross multiply
    71,573.10x = 98,768.98 × 39,741.18
  4. Step 4: Simplify right side
    71,573.10x = 3,925,195,812.60
  5. Step 5: Solve for x
    x = 3,925,195,812.60/71,573.10
  6. Step 6: Final answer
    x = 54,841.77

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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.