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Finding the Fourth Proportional to 70,562.16, 97,372.32 and 38,730.48

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Solution

The fourth proportional to 70,562.16, 97,372.32 and 38,730.48 is: 53,446.16

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,562.16 : 97,372.32 = 38,730.48 : x
  2. Step 2: Convert to fraction form
    70,562.16/97,372.32 = 38,730.48/x
  3. Step 3: Cross multiply
    70,562.16x = 97,372.32 × 38,730.48
  4. Step 4: Simplify right side
    70,562.16x = 3,771,276,692.31
  5. Step 5: Solve for x
    x = 3,771,276,692.31/70,562.16
  6. Step 6: Final answer
    x = 53,446.16

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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.