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Finding the Fourth Proportional to 70,931.70, 97,882.83 and 45,402.12

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Solution

The fourth proportional to 70,931.70, 97,882.83 and 45,402.12 is: 62,653.06

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,931.70 : 97,882.83 = 45,402.12 : x
  2. Step 2: Convert to fraction form
    70,931.70/97,882.83 = 45,402.12/x
  3. Step 3: Cross multiply
    70,931.70x = 97,882.83 × 45,402.12
  4. Step 4: Simplify right side
    70,931.70x = 4,444,087,993.60
  5. Step 5: Solve for x
    x = 4,444,087,993.60/70,931.70
  6. Step 6: Final answer
    x = 62,653.06

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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.