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Finding the Fourth Proportional to 64,425.64, 89,029.40 and 48,482.32

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Solution

The fourth proportional to 64,425.64, 89,029.40 and 48,482.32 is: 66,997.42

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,425.64 : 89,029.40 = 48,482.32 : x
  2. Step 2: Convert to fraction form
    64,425.64/89,029.40 = 48,482.32/x
  3. Step 3: Cross multiply
    64,425.64x = 89,029.40 × 48,482.32
  4. Step 4: Simplify right side
    64,425.64x = 4,316,351,860.21
  5. Step 5: Solve for x
    x = 4,316,351,860.21/64,425.64
  6. Step 6: Final answer
    x = 66,997.42

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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.