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Finding the Fourth Proportional to 70,541.82, 97,349.31 and 38,712.74

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Solution

The fourth proportional to 70,541.82, 97,349.31 and 38,712.74 is: 53,424.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,541.82 : 97,349.31 = 38,712.74 : x
  2. Step 2: Convert to fraction form
    70,541.82/97,349.31 = 38,712.74/x
  3. Step 3: Cross multiply
    70,541.82x = 97,349.31 × 38,712.74
  4. Step 4: Simplify right side
    70,541.82x = 3,768,658,040.46
  5. Step 5: Solve for x
    x = 3,768,658,040.46/70,541.82
  6. Step 6: Final answer
    x = 53,424.45

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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.