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Finding the Fourth Proportional to 66,871.40, 92,311.92 and 46,807.06

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Solution

The fourth proportional to 66,871.40, 92,311.92 and 46,807.06 is: 64,614.31

Step by Step Solution

  1. Step 1: Write the proportion equation
    66,871.40 : 92,311.92 = 46,807.06 : x
  2. Step 2: Convert to fraction form
    66,871.40/92,311.92 = 46,807.06/x
  3. Step 3: Cross multiply
    66,871.40x = 92,311.92 × 46,807.06
  4. Step 4: Simplify right side
    66,871.40x = 4,320,849,578.16
  5. Step 5: Solve for x
    x = 4,320,849,578.16/66,871.40
  6. Step 6: Final answer
    x = 64,614.31

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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.