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Finding the Fourth Proportional to 70,935.62, 97,900.02 and 40,730.40

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Solution

The fourth proportional to 70,935.62, 97,900.02 and 40,730.40 is: 56,213.04

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,935.62 : 97,900.02 = 40,730.40 : x
  2. Step 2: Convert to fraction form
    70,935.62/97,900.02 = 40,730.40/x
  3. Step 3: Cross multiply
    70,935.62x = 97,900.02 × 40,730.40
  4. Step 4: Simplify right side
    70,935.62x = 3,987,506,974.61
  5. Step 5: Solve for x
    x = 3,987,506,974.61/70,935.62
  6. Step 6: Final answer
    x = 56,213.04

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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.