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Finding the Fourth Proportional to 13,875.93, 20,813.94 and 4,641.93

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Solution

The fourth proportional to 13,875.93, 20,813.94 and 4,641.93 is: 6,962.91

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,875.93 : 20,813.94 = 4,641.93 : x
  2. Step 2: Convert to fraction form
    13,875.93/20,813.94 = 4,641.93/x
  3. Step 3: Cross multiply
    13,875.93x = 20,813.94 × 4,641.93
  4. Step 4: Simplify right side
    13,875.93x = 96,616,852.50
  5. Step 5: Solve for x
    x = 96,616,852.50/13,875.93
  6. Step 6: Final answer
    x = 6,962.91

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1.5x scale

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.