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Finding the Fourth Proportional to 70,636.94, 97,484.44 and 40,431.74

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Solution

The fourth proportional to 70,636.94, 97,484.44 and 40,431.74 is: 55,798.92

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,636.94 : 97,484.44 = 40,431.74 : x
  2. Step 2: Convert to fraction form
    70,636.94/97,484.44 = 40,431.74/x
  3. Step 3: Cross multiply
    70,636.94x = 97,484.44 × 40,431.74
  4. Step 4: Simplify right side
    70,636.94x = 3,941,464,943.62
  5. Step 5: Solve for x
    x = 3,941,464,943.62/70,636.94
  6. Step 6: Final answer
    x = 55,798.92

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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.