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Finding the Fourth Proportional to 70,752.69, 97,641.45 and 38,922.93

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Solution

The fourth proportional to 70,752.69, 97,641.45 and 38,922.93 is: 53,715.15

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,752.69 : 97,641.45 = 38,922.93 : x
  2. Step 2: Convert to fraction form
    70,752.69/97,641.45 = 38,922.93/x
  3. Step 3: Cross multiply
    70,752.69x = 97,641.45 × 38,922.93
  4. Step 4: Simplify right side
    70,752.69x = 3,800,491,323.45
  5. Step 5: Solve for x
    x = 3,800,491,323.45/70,752.69
  6. Step 6: Final answer
    x = 53,715.15

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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.