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Finding the Fourth Proportional to 46,043.52, 69,042.96 and 21,076.08

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Solution

The fourth proportional to 46,043.52, 69,042.96 and 21,076.08 is: 31,603.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    46,043.52 : 69,042.96 = 21,076.08 : x
  2. Step 2: Convert to fraction form
    46,043.52/69,042.96 = 21,076.08/x
  3. Step 3: Cross multiply
    46,043.52x = 69,042.96 × 21,076.08
  4. Step 4: Simplify right side
    46,043.52x = 1,455,154,948.40
  5. Step 5: Solve for x
    x = 1,455,154,948.40/46,043.52
  6. Step 6: Final answer
    x = 31,603.90

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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.