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Finding the Fourth Proportional to 62,783.40, 86,640.84 and 37,307.28

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Solution

The fourth proportional to 62,783.40, 86,640.84 and 37,307.28 is: 51,483.90

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,783.40 : 86,640.84 = 37,307.28 : x
  2. Step 2: Convert to fraction form
    62,783.40/86,640.84 = 37,307.28/x
  3. Step 3: Cross multiply
    62,783.40x = 86,640.84 × 37,307.28
  4. Step 4: Simplify right side
    62,783.40x = 3,232,334,077.32
  5. Step 5: Solve for x
    x = 3,232,334,077.32/62,783.40
  6. Step 6: Final answer
    x = 51,483.90

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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.