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Finding the Fourth Proportional to 14,166.48, 19,549.48 and 7,878.80

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Solution

The fourth proportional to 14,166.48, 19,549.48 and 7,878.80 is: 10,872.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,166.48 : 19,549.48 = 7,878.80 : x
  2. Step 2: Convert to fraction form
    14,166.48/19,549.48 = 7,878.80/x
  3. Step 3: Cross multiply
    14,166.48x = 19,549.48 × 7,878.80
  4. Step 4: Simplify right side
    14,166.48x = 154,026,443.02
  5. Step 5: Solve for x
    x = 154,026,443.02/14,166.48
  6. Step 6: Final answer
    x = 10,872.60

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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.