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Finding the Fourth Proportional to 70,905, 97,850.12 and 45,798.24

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Solution

The fourth proportional to 70,905, 97,850.12 and 45,798.24 is: 63,202.36

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,905 : 97,850.12 = 45,798.24 : x
  2. Step 2: Convert to fraction form
    70,905/97,850.12 = 45,798.24/x
  3. Step 3: Cross multiply
    70,905x = 97,850.12 × 45,798.24
  4. Step 4: Simplify right side
    70,905x = 4,481,363,279.79
  5. Step 5: Solve for x
    x = 4,481,363,279.79/70,905
  6. Step 6: Final answer
    x = 63,202.36

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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.