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Finding the Fourth Proportional to 70,476.61, 97,260.53 and 38,646.65

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Solution

The fourth proportional to 70,476.61, 97,260.53 and 38,646.65 is: 53,333.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,476.61 : 97,260.53 = 38,646.65 : x
  2. Step 2: Convert to fraction form
    70,476.61/97,260.53 = 38,646.65/x
  3. Step 3: Cross multiply
    70,476.61x = 97,260.53 × 38,646.65
  4. Step 4: Simplify right side
    70,476.61x = 3,758,793,661.72
  5. Step 5: Solve for x
    x = 3,758,793,661.72/70,476.61
  6. Step 6: Final answer
    x = 53,333.92

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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.