Home / 66,365.02-99,561.93-19,621.66

Finding the Fourth Proportional to 66,365.02, 99,561.93 and 19,621.66

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Solution

The fourth proportional to 66,365.02, 99,561.93 and 19,621.66 is: 29,436.75

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,365.02 : 99,561.93 = 19,621.66 : x
  2. Step 2: Convert to fraction form
    66,365.02/99,561.93 = 19,621.66/x
  3. Step 3: Cross multiply
    66,365.02x = 99,561.93 × 19,621.66
  4. Step 4: Simplify right side
    66,365.02x = 1,953,570,339.40
  5. Step 5: Solve for x
    x = 1,953,570,339.40/66,365.02
  6. Step 6: Final answer
    x = 29,436.75

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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.