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Finding the Fourth Proportional to 64,842.20, 89,482.91 and 36,547.88

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Solution

The fourth proportional to 64,842.20, 89,482.91 and 36,547.88 is: 50,436.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,842.20 : 89,482.91 = 36,547.88 : x
  2. Step 2: Convert to fraction form
    64,842.20/89,482.91 = 36,547.88/x
  3. Step 3: Cross multiply
    64,842.20x = 89,482.91 × 36,547.88
  4. Step 4: Simplify right side
    64,842.20x = 3,270,410,880.44
  5. Step 5: Solve for x
    x = 3,270,410,880.44/64,842.20
  6. Step 6: Final answer
    x = 50,436.46

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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.