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Finding the Fourth Proportional to 69,994.77, 96,595.35 and 39,785.16

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Solution

The fourth proportional to 69,994.77, 96,595.35 and 39,785.16 is: 54,904.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,994.77 : 96,595.35 = 39,785.16 : x
  2. Step 2: Convert to fraction form
    69,994.77/96,595.35 = 39,785.16/x
  3. Step 3: Cross multiply
    69,994.77x = 96,595.35 × 39,785.16
  4. Step 4: Simplify right side
    69,994.77x = 3,843,061,455.01
  5. Step 5: Solve for x
    x = 3,843,061,455.01/69,994.77
  6. Step 6: Final answer
    x = 54,904.98

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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.