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Finding the Fourth Proportional to 8,955.90, 13,429.95 and 4,510.76

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Solution

The fourth proportional to 8,955.90, 13,429.95 and 4,510.76 is: 6,764.17

Step by Step Solution

  1. Step 1: Write the proportion equation
    8,955.90 : 13,429.95 = 4,510.76 : x
  2. Step 2: Convert to fraction form
    8,955.90/13,429.95 = 4,510.76/x
  3. Step 3: Cross multiply
    8,955.90x = 13,429.95 × 4,510.76
  4. Step 4: Simplify right side
    8,955.90x = 60,579,197.20
  5. Step 5: Solve for x
    x = 60,579,197.20/8,955.90
  6. Step 6: Final answer
    x = 6,764.17

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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.