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Finding the Fourth Proportional to 62,208.60, 93,312.90 and 20,655.60

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Solution

The fourth proportional to 62,208.60, 93,312.90 and 20,655.60 is: 30,983.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    62,208.60 : 93,312.90 = 20,655.60 : x
  2. Step 2: Convert to fraction form
    62,208.60/93,312.90 = 20,655.60/x
  3. Step 3: Cross multiply
    62,208.60x = 93,312.90 × 20,655.60
  4. Step 4: Simplify right side
    62,208.60x = 1,927,433,937.24
  5. Step 5: Solve for x
    x = 1,927,433,937.24/62,208.60
  6. Step 6: Final answer
    x = 30,983.40

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Similar ratio
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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.