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Finding the Fourth Proportional to 70,645.16, 97,462.74 and 40,414.34

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Solution

The fourth proportional to 70,645.16, 97,462.74 and 40,414.34 is: 55,756.01

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,645.16 : 97,462.74 = 40,414.34 : x
  2. Step 2: Convert to fraction form
    70,645.16/97,462.74 = 40,414.34/x
  3. Step 3: Cross multiply
    70,645.16x = 97,462.74 × 40,414.34
  4. Step 4: Simplify right side
    70,645.16x = 3,938,892,706.90
  5. Step 5: Solve for x
    x = 3,938,892,706.90/70,645.16
  6. Step 6: Final answer
    x = 55,756.01

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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.