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Finding the Fourth Proportional to 70,656.10, 97,510.85 and 40,450.90

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Solution

The fourth proportional to 70,656.10, 97,510.85 and 40,450.90 is: 55,825.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,656.10 : 97,510.85 = 40,450.90 : x
  2. Step 2: Convert to fraction form
    70,656.10/97,510.85 = 40,450.90/x
  3. Step 3: Cross multiply
    70,656.10x = 97,510.85 × 40,450.90
  4. Step 4: Simplify right side
    70,656.10x = 3,944,401,440.01
  5. Step 5: Solve for x
    x = 3,944,401,440.01/70,656.10
  6. Step 6: Final answer
    x = 55,825.35

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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.