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Finding the Fourth Proportional to 14,603.61, 21,908.56 and 4,742.67

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Solution

The fourth proportional to 14,603.61, 21,908.56 and 4,742.67 is: 7,115.03

Step by Step Solution

  1. Step 1: Write the proportion equation
    14,603.61 : 21,908.56 = 4,742.67 : x
  2. Step 2: Convert to fraction form
    14,603.61/21,908.56 = 4,742.67/x
  3. Step 3: Cross multiply
    14,603.61x = 21,908.56 × 4,742.67
  4. Step 4: Simplify right side
    14,603.61x = 103,905,070.26
  5. Step 5: Solve for x
    x = 103,905,070.26/14,603.61
  6. Step 6: Final answer
    x = 7,115.03

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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.