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Finding the Fourth Proportional to 64,841.40, 89,482.86 and 36,545.40

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Solution

The fourth proportional to 64,841.40, 89,482.86 and 36,545.40 is: 50,433.63

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,841.40 : 89,482.86 = 36,545.40 : x
  2. Step 2: Convert to fraction form
    64,841.40/89,482.86 = 36,545.40/x
  3. Step 3: Cross multiply
    64,841.40x = 89,482.86 × 36,545.40
  4. Step 4: Simplify right side
    64,841.40x = 3,270,186,911.84
  5. Step 5: Solve for x
    x = 3,270,186,911.84/64,841.40
  6. Step 6: Final answer
    x = 50,433.63

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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.