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Finding the Fourth Proportional to 70,575.81, 97,395.93 and 38,745.86

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Solution

The fourth proportional to 70,575.81, 97,395.93 and 38,745.86 is: 53,470.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,575.81 : 97,395.93 = 38,745.86 : x
  2. Step 2: Convert to fraction form
    70,575.81/97,395.93 = 38,745.86/x
  3. Step 3: Cross multiply
    70,575.81x = 97,395.93 × 38,745.86
  4. Step 4: Simplify right side
    70,575.81x = 3,773,688,581.37
  5. Step 5: Solve for x
    x = 3,773,688,581.37/70,575.81
  6. Step 6: Final answer
    x = 53,470.00

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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.