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Finding the Fourth Proportional to 70,901.52, 97,848.45 and 39,070.41

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Solution

The fourth proportional to 70,901.52, 97,848.45 and 39,070.41 is: 53,919.56

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,901.52 : 97,848.45 = 39,070.41 : x
  2. Step 2: Convert to fraction form
    70,901.52/97,848.45 = 39,070.41/x
  3. Step 3: Cross multiply
    70,901.52x = 97,848.45 × 39,070.41
  4. Step 4: Simplify right side
    70,901.52x = 3,822,979,059.36
  5. Step 5: Solve for x
    x = 3,822,979,059.36/70,901.52
  6. Step 6: Final answer
    x = 53,919.56

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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.