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Finding the Fourth Proportional to 30,483.41, 42,068.74 and 17,053.86

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Solution

The fourth proportional to 30,483.41, 42,068.74 and 17,053.86 is: 23,535.24

Step by Step Solution

  1. Step 1: Write the proportion equation
    30,483.41 : 42,068.74 = 17,053.86 : x
  2. Step 2: Convert to fraction form
    30,483.41/42,068.74 = 17,053.86/x
  3. Step 3: Cross multiply
    30,483.41x = 42,068.74 × 17,053.86
  4. Step 4: Simplify right side
    30,483.41x = 717,434,317.07
  5. Step 5: Solve for x
    x = 717,434,317.07/30,483.41
  6. Step 6: Final answer
    x = 23,535.24

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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.