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Finding the Fourth Proportional to 66,054.69, 99,082.04 and 19,307.57

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Solution

The fourth proportional to 66,054.69, 99,082.04 and 19,307.57 is: 28,961.35

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,054.69 : 99,082.04 = 19,307.57 : x
  2. Step 2: Convert to fraction form
    66,054.69/99,082.04 = 19,307.57/x
  3. Step 3: Cross multiply
    66,054.69x = 99,082.04 × 19,307.57
  4. Step 4: Simplify right side
    66,054.69x = 1,913,032,831.09
  5. Step 5: Solve for x
    x = 1,913,032,831.09/66,054.69
  6. Step 6: Final answer
    x = 28,961.35

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Similar ratio
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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.