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Finding the Fourth Proportional to 70,383.61, 97,129.23 and 38,118.13

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Solution

The fourth proportional to 70,383.61, 97,129.23 and 38,118.13 is: 52,602.94

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,383.61 : 97,129.23 = 38,118.13 : x
  2. Step 2: Convert to fraction form
    70,383.61/97,129.23 = 38,118.13/x
  3. Step 3: Cross multiply
    70,383.61x = 97,129.23 × 38,118.13
  4. Step 4: Simplify right side
    70,383.61x = 3,702,384,615.94
  5. Step 5: Solve for x
    x = 3,702,384,615.94/70,383.61
  6. Step 6: Final answer
    x = 52,602.94

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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.