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Finding the Fourth Proportional to 74,999.40, 112,482.90 and 32,879.40

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Solution

The fourth proportional to 74,999.40, 112,482.90 and 32,879.40 is: 49,312.00

Step by Step Solution

  1. Step 1: Write the proportion equation
    74,999.40 : 112,482.90 = 32,879.40 : x
  2. Step 2: Convert to fraction form
    74,999.40/112,482.90 = 32,879.40/x
  3. Step 3: Cross multiply
    74,999.40x = 112,482.90 × 32,879.40
  4. Step 4: Simplify right side
    74,999.40x = 3,698,370,262.26
  5. Step 5: Solve for x
    x = 3,698,370,262.26/74,999.40
  6. Step 6: Final answer
    x = 49,312.00

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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.