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Finding the Fourth Proportional to 64,925.60, 97,387.76 and 20,552.40

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Solution

The fourth proportional to 64,925.60, 97,387.76 and 20,552.40 is: 30,828.40

Step by Step Solution

  1. Step 1: Write the proportion equation
    64,925.60 : 97,387.76 = 20,552.40 : x
  2. Step 2: Convert to fraction form
    64,925.60/97,387.76 = 20,552.40/x
  3. Step 3: Cross multiply
    64,925.60x = 97,387.76 × 20,552.40
  4. Step 4: Simplify right side
    64,925.60x = 2,001,552,198.62
  5. Step 5: Solve for x
    x = 2,001,552,198.62/64,925.60
  6. Step 6: Final answer
    x = 30,828.40

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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.