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Finding the Fourth Proportional to 66,461.00, 99,691.50 and 19,710.23

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Solution

The fourth proportional to 66,461.00, 99,691.50 and 19,710.23 is: 29,565.34

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,461.00 : 99,691.50 = 19,710.23 : x
  2. Step 2: Convert to fraction form
    66,461.00/99,691.50 = 19,710.23/x
  3. Step 3: Cross multiply
    66,461.00x = 99,691.50 × 19,710.23
  4. Step 4: Simplify right side
    66,461.00x = 1,964,941,895.59
  5. Step 5: Solve for x
    x = 1,964,941,895.59/66,461.00
  6. Step 6: Final answer
    x = 29,565.34

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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.