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Finding the Fourth Proportional to 70,833.40, 97,751.94 and 38,999.32

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Solution

The fourth proportional to 70,833.40, 97,751.94 and 38,999.32 is: 53,820.08

Step by Step Solution

  1. Step 1: Write the proportion equation
    70,833.40 : 97,751.94 = 38,999.32 : x
  2. Step 2: Convert to fraction form
    70,833.40/97,751.94 = 38,999.32/x
  3. Step 3: Cross multiply
    70,833.40x = 97,751.94 × 38,999.32
  4. Step 4: Simplify right side
    70,833.40x = 3,812,259,188.68
  5. Step 5: Solve for x
    x = 3,812,259,188.68/70,833.40
  6. Step 6: Final answer
    x = 53,820.08

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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.