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Finding the Fourth Proportional to 62,354.72, 86,021.52 and 38,482.40

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Solution

The fourth proportional to 62,354.72, 86,021.52 and 38,482.40 is: 53,088.44

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,354.72 : 86,021.52 = 38,482.40 : x
  2. Step 2: Convert to fraction form
    62,354.72/86,021.52 = 38,482.40/x
  3. Step 3: Cross multiply
    62,354.72x = 86,021.52 × 38,482.40
  4. Step 4: Simplify right side
    62,354.72x = 3,310,314,541.25
  5. Step 5: Solve for x
    x = 3,310,314,541.25/62,354.72
  6. Step 6: Final answer
    x = 53,088.44

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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.