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Finding the Fourth Proportional to 62,617.16, 86,420.54 and 38,751.53

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Solution

The fourth proportional to 62,617.16, 86,420.54 and 38,751.53 is: 53,482.59

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,617.16 : 86,420.54 = 38,751.53 : x
  2. Step 2: Convert to fraction form
    62,617.16/86,420.54 = 38,751.53/x
  3. Step 3: Cross multiply
    62,617.16x = 86,420.54 × 38,751.53
  4. Step 4: Simplify right side
    62,617.16x = 3,348,927,522.57
  5. Step 5: Solve for x
    x = 3,348,927,522.57/62,617.16
  6. Step 6: Final answer
    x = 53,482.59

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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.