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Finding the Fourth Proportional to 92,849, 128,237.12 and 62,582.16

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Solution

The fourth proportional to 92,849, 128,237.12 and 62,582.16 is: 86,434.49

Step by Step Solution

  1. Step 1: Write the proportion equation
    92,849 : 128,237.12 = 62,582.16 : x
  2. Step 2: Convert to fraction form
    92,849/128,237.12 = 62,582.16/x
  3. Step 3: Cross multiply
    92,849x = 128,237.12 × 62,582.16
  4. Step 4: Simplify right side
    92,849x = 8,025,355,961.78
  5. Step 5: Solve for x
    x = 8,025,355,961.78/92,849
  6. Step 6: Final answer
    x = 86,434.49

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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.