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Finding the Fourth Proportional to 71,478.60, 98,599.20 and 44,574.40

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Solution

The fourth proportional to 71,478.60, 98,599.20 and 44,574.40 is: 61,486.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    71,478.60 : 98,599.20 = 44,574.40 : x
  2. Step 2: Convert to fraction form
    71,478.60/98,599.20 = 44,574.40/x
  3. Step 3: Cross multiply
    71,478.60x = 98,599.20 × 44,574.40
  4. Step 4: Simplify right side
    71,478.60x = 4,395,000,180.48
  5. Step 5: Solve for x
    x = 4,395,000,180.48/71,478.60
  6. Step 6: Final answer
    x = 61,486.94

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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.