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Finding the Fourth Proportional to 26,702.19, 40,045.09 and 12,658.07

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Solution

The fourth proportional to 26,702.19, 40,045.09 and 12,658.07 is: 18,983.22

Step by Step Solution

  1. Step 1: Write the proportion equation
    26,702.19 : 40,045.09 = 12,658.07 : x
  2. Step 2: Convert to fraction form
    26,702.19/40,045.09 = 12,658.07/x
  3. Step 3: Cross multiply
    26,702.19x = 40,045.09 × 12,658.07
  4. Step 4: Simplify right side
    26,702.19x = 506,893,552.38
  5. Step 5: Solve for x
    x = 506,893,552.38/26,702.19
  6. Step 6: Final answer
    x = 18,983.22

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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.