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Finding the Fourth Proportional to 69,915, 96,455.34 and 46,054.20

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Solution

The fourth proportional to 69,915, 96,455.34 and 46,054.20 is: 63,536.77

Step by Step Solution

  1. Step 1: Write the proportion equation
    69,915 : 96,455.34 = 46,054.20 : x
  2. Step 2: Convert to fraction form
    69,915/96,455.34 = 46,054.20/x
  3. Step 3: Cross multiply
    69,915x = 96,455.34 × 46,054.20
  4. Step 4: Simplify right side
    69,915x = 4,442,173,519.43
  5. Step 5: Solve for x
    x = 4,442,173,519.43/69,915
  6. Step 6: Final answer
    x = 63,536.77

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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.