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Finding the Fourth Proportional to 64,400.64, 88,872.88 and 36,106.32

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Solution

The fourth proportional to 64,400.64, 88,872.88 and 36,106.32 is: 49,826.72

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,400.64 : 88,872.88 = 36,106.32 : x
  2. Step 2: Convert to fraction form
    64,400.64/88,872.88 = 36,106.32/x
  3. Step 3: Cross multiply
    64,400.64x = 88,872.88 × 36,106.32
  4. Step 4: Simplify right side
    64,400.64x = 3,208,872,644.60
  5. Step 5: Solve for x
    x = 3,208,872,644.60/64,400.64
  6. Step 6: Final answer
    x = 49,826.72

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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.