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Finding the Fourth Proportional to 64,483.40, 88,990.98 and 39,333.08

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Solution

The fourth proportional to 64,483.40, 88,990.98 and 39,333.08 is: 54,282.02

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,483.40 : 88,990.98 = 39,333.08 : x
  2. Step 2: Convert to fraction form
    64,483.40/88,990.98 = 39,333.08/x
  3. Step 3: Cross multiply
    64,483.40x = 88,990.98 × 39,333.08
  4. Step 4: Simplify right side
    64,483.40x = 3,500,289,335.62
  5. Step 5: Solve for x
    x = 3,500,289,335.62/64,483.40
  6. Step 6: Final answer
    x = 54,282.02

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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.