Home / 13,842.47-19,102.63-7,554.85

Finding the Fourth Proportional to 13,842.47, 19,102.63 and 7,554.85

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Solution

The fourth proportional to 13,842.47, 19,102.63 and 7,554.85 is: 10,425.70

Step by Step Solution

  1. Step 1: Write the proportion equation
    13,842.47 : 19,102.63 = 7,554.85 : x
  2. Step 2: Convert to fraction form
    13,842.47/19,102.63 = 7,554.85/x
  3. Step 3: Cross multiply
    13,842.47x = 19,102.63 × 7,554.85
  4. Step 4: Simplify right side
    13,842.47x = 144,317,437.61
  5. Step 5: Solve for x
    x = 144,317,437.61/13,842.47
  6. Step 6: Final answer
    x = 10,425.70

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Half scale
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Double scale
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Similar ratio
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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.