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Finding the Fourth Proportional to 66,695.68, 92,073.45 and 51,554.08

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Solution

The fourth proportional to 66,695.68, 92,073.45 and 51,554.08 is: 71,170.46

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,695.68 : 92,073.45 = 51,554.08 : x
  2. Step 2: Convert to fraction form
    66,695.68/92,073.45 = 51,554.08/x
  3. Step 3: Cross multiply
    66,695.68x = 92,073.45 × 51,554.08
  4. Step 4: Simplify right side
    66,695.68x = 4,746,762,007.18
  5. Step 5: Solve for x
    x = 4,746,762,007.18/66,695.68
  6. Step 6: Final answer
    x = 71,170.46

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.38) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.