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Finding the Fourth Proportional to 70,302.60, 97,017.57 and 38,471.49

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Solution

The fourth proportional to 70,302.60, 97,017.57 and 38,471.49 is: 53,090.65

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,302.60 : 97,017.57 = 38,471.49 : x
  2. Step 2: Convert to fraction form
    70,302.60/97,017.57 = 38,471.49/x
  3. Step 3: Cross multiply
    70,302.60x = 97,017.57 × 38,471.49
  4. Step 4: Simplify right side
    70,302.60x = 3,732,410,474.08
  5. Step 5: Solve for x
    x = 3,732,410,474.08/70,302.60
  6. Step 6: Final answer
    x = 53,090.65

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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.