Home / 66,258.75-99,388.13-19,510.95

Finding the Fourth Proportional to 66,258.75, 99,388.13 and 19,510.95

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Solution

The fourth proportional to 66,258.75, 99,388.13 and 19,510.95 is: 29,266.43

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,258.75 : 99,388.13 = 19,510.95 : x
  2. Step 2: Convert to fraction form
    66,258.75/99,388.13 = 19,510.95/x
  3. Step 3: Cross multiply
    66,258.75x = 99,388.13 × 19,510.95
  4. Step 4: Simplify right side
    66,258.75x = 1,939,156,737.47
  5. Step 5: Solve for x
    x = 1,939,156,737.47/66,258.75
  6. Step 6: Final answer
    x = 29,266.43

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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.