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Finding the Fourth Proportional to 70,932.30, 97,886.22 and 39,101.16

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Solution

The fourth proportional to 70,932.30, 97,886.22 and 39,101.16 is: 53,959.41

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,932.30 : 97,886.22 = 39,101.16 : x
  2. Step 2: Convert to fraction form
    70,932.30/97,886.22 = 39,101.16/x
  3. Step 3: Cross multiply
    70,932.30x = 97,886.22 × 39,101.16
  4. Step 4: Simplify right side
    70,932.30x = 3,827,464,750.02
  5. Step 5: Solve for x
    x = 3,827,464,750.02/70,932.30
  6. Step 6: Final answer
    x = 53,959.41

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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.