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Finding the Fourth Proportional to 70,491.67, 97,284.66 and 38,666.72

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Solution

The fourth proportional to 70,491.67, 97,284.66 and 38,666.72 is: 53,363.45

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,491.67 : 97,284.66 = 38,666.72 : x
  2. Step 2: Convert to fraction form
    70,491.67/97,284.66 = 38,666.72/x
  3. Step 3: Cross multiply
    70,491.67x = 97,284.66 × 38,666.72
  4. Step 4: Simplify right side
    70,491.67x = 3,761,678,441.91
  5. Step 5: Solve for x
    x = 3,761,678,441.91/70,491.67
  6. Step 6: Final answer
    x = 53,363.45

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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.