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Finding the Fourth Proportional to 70,612.94, 97,447.02 and 38,347.64

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Solution

The fourth proportional to 70,612.94, 97,447.02 and 38,347.64 is: 52,920.37

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,612.94 : 97,447.02 = 38,347.64 : x
  2. Step 2: Convert to fraction form
    70,612.94/97,447.02 = 38,347.64/x
  3. Step 3: Cross multiply
    70,612.94x = 97,447.02 × 38,347.64
  4. Step 4: Simplify right side
    70,612.94x = 3,736,863,242.03
  5. Step 5: Solve for x
    x = 3,736,863,242.03/70,612.94
  6. Step 6: Final answer
    x = 52,920.37

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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.