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Finding the Fourth Proportional to 70,698.51, 97,565.58 and 38,434.95

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Solution

The fourth proportional to 70,698.51, 97,565.58 and 38,434.95 is: 53,041.12

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,698.51 : 97,565.58 = 38,434.95 : x
  2. Step 2: Convert to fraction form
    70,698.51/97,565.58 = 38,434.95/x
  3. Step 3: Cross multiply
    70,698.51x = 97,565.58 × 38,434.95
  4. Step 4: Simplify right side
    70,698.51x = 3,749,928,189.02
  5. Step 5: Solve for x
    x = 3,749,928,189.02/70,698.51
  6. Step 6: Final answer
    x = 53,041.12

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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.