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Finding the Fourth Proportional to 14,203.15, 19,599.47 and 7,829.41

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Solution

The fourth proportional to 14,203.15, 19,599.47 and 7,829.41 is: 10,804.10

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,203.15 : 19,599.47 = 7,829.41 : x
  2. Step 2: Convert to fraction form
    14,203.15/19,599.47 = 7,829.41/x
  3. Step 3: Cross multiply
    14,203.15x = 19,599.47 × 7,829.41
  4. Step 4: Simplify right side
    14,203.15x = 153,452,315.84
  5. Step 5: Solve for x
    x = 153,452,315.84/14,203.15
  6. Step 6: Final answer
    x = 10,804.10

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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.