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Finding the Fourth Proportional to 70,955.25, 97,913.76 and 39,124.41

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Solution

The fourth proportional to 70,955.25, 97,913.76 and 39,124.41 is: 53,989.21

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,955.25 : 97,913.76 = 39,124.41 : x
  2. Step 2: Convert to fraction form
    70,955.25/97,913.76 = 39,124.41/x
  3. Step 3: Cross multiply
    70,955.25x = 97,913.76 × 39,124.41
  4. Step 4: Simplify right side
    70,955.25x = 3,830,818,090.88
  5. Step 5: Solve for x
    x = 3,830,818,090.88/70,955.25
  6. Step 6: Final answer
    x = 53,989.21

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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.