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Finding the Fourth Proportional to 14,368.73, 19,827.65 and 8,399.77

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Solution

The fourth proportional to 14,368.73, 19,827.65 and 8,399.77 is: 11,590.98

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,368.73 : 19,827.65 = 8,399.77 : x
  2. Step 2: Convert to fraction form
    14,368.73/19,827.65 = 8,399.77/x
  3. Step 3: Cross multiply
    14,368.73x = 19,827.65 × 8,399.77
  4. Step 4: Simplify right side
    14,368.73x = 166,547,671.07
  5. Step 5: Solve for x
    x = 166,547,671.07/14,368.73
  6. Step 6: Final answer
    x = 11,590.98

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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.