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Finding the Fourth Proportional to 30,483.66, 42,069.08 and 17,054.11

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Solution

The fourth proportional to 30,483.66, 42,069.08 and 17,054.11 is: 23,535.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,483.66 : 42,069.08 = 17,054.11 : x
  2. Step 2: Convert to fraction form
    30,483.66/42,069.08 = 17,054.11/x
  3. Step 3: Cross multiply
    30,483.66x = 42,069.08 × 17,054.11
  4. Step 4: Simplify right side
    30,483.66x = 717,450,655.38
  5. Step 5: Solve for x
    x = 717,450,655.38/30,483.66
  6. Step 6: Final answer
    x = 23,535.58

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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.