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Finding the Fourth Proportional to 64,882.98, 89,530.48 and 38,019.32

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Solution

The fourth proportional to 64,882.98, 89,530.48 and 38,019.32 is: 52,461.95

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,882.98 : 89,530.48 = 38,019.32 : x
  2. Step 2: Convert to fraction form
    64,882.98/89,530.48 = 38,019.32/x
  3. Step 3: Cross multiply
    64,882.98x = 89,530.48 × 38,019.32
  4. Step 4: Simplify right side
    64,882.98x = 3,403,887,968.87
  5. Step 5: Solve for x
    x = 3,403,887,968.87/64,882.98
  6. Step 6: Final answer
    x = 52,461.95

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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.