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Finding the Fourth Proportional to 42,340.40, 63,491.40 and 16,036.40

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Solution

The fourth proportional to 42,340.40, 63,491.40 and 16,036.40 is: 24,047.33

Step by Step Solution

  1. Step 1: Write the proportion equation
    42,340.40 : 63,491.40 = 16,036.40 : x
  2. Step 2: Convert to fraction form
    42,340.40/63,491.40 = 16,036.40/x
  3. Step 3: Cross multiply
    42,340.40x = 63,491.40 × 16,036.40
  4. Step 4: Simplify right side
    42,340.40x = 1,018,173,486.96
  5. Step 5: Solve for x
    x = 1,018,173,486.96/42,340.40
  6. Step 6: Final answer
    x = 24,047.33

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.