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Finding the Fourth Proportional to 70,880.22, 97,819.12 and 39,049.10

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Solution

The fourth proportional to 70,880.22, 97,819.12 and 39,049.10 is: 53,890.19

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,880.22 : 97,819.12 = 39,049.10 : x
  2. Step 2: Convert to fraction form
    70,880.22/97,819.12 = 39,049.10/x
  3. Step 3: Cross multiply
    70,880.22x = 97,819.12 × 39,049.10
  4. Step 4: Simplify right side
    70,880.22x = 3,819,748,598.79
  5. Step 5: Solve for x
    x = 3,819,748,598.79/70,880.22
  6. Step 6: Final answer
    x = 53,890.19

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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.