Home / 66,557.90-99,837.71-19,173.76

Finding the Fourth Proportional to 66,557.90, 99,837.71 and 19,173.76

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Solution

The fourth proportional to 66,557.90, 99,837.71 and 19,173.76 is: 28,760.89

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,557.90 : 99,837.71 = 19,173.76 : x
  2. Step 2: Convert to fraction form
    66,557.90/99,837.71 = 19,173.76/x
  3. Step 3: Cross multiply
    66,557.90x = 99,837.71 × 19,173.76
  4. Step 4: Simplify right side
    66,557.90x = 1,914,264,686.37
  5. Step 5: Solve for x
    x = 1,914,264,686.37/66,557.90
  6. Step 6: Final answer
    x = 28,760.89

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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.